## #

%
(slope percent)

Slope (grade) units, Circular measure

%
(percent)

Percentages and Parts, Franctions and Percent

‰
(slope permille)

Slope (grade) units, Circular measure

‰
(permille)

Percentages and Parts, Franctions and Percent

′
(minute)

Common Units, Circular measure

″
(second)

Common Units, Circular measure

℈
(scruple)

Apothecaries, Mass and weight

℔, ″
(pound)

Apothecaries, Mass and weight

℥
(ounce)

Apothecaries, Mass and weight

1
(unit, point)

Quantity Units, Franctions and Percent

1/10
(one tenth or .1)

Fractions, Franctions and Percent

1/16
(one sixteenth or .0625)

Fractions, Franctions and Percent

1/2
(half or .5)

Fractions, Franctions and Percent

1/3
(one third or .(3))

Fractions, Franctions and Percent

1/32
(one thirty-second or .03125)

Fractions, Franctions and Percent

1/4
(quart, one forth or .25)

Fractions, Franctions and Percent

1/5
(tithe, one fifth or .2)

Fractions, Franctions and Percent

1/6
(one sixth or .1(6))

Fractions, Franctions and Percent

1/7
(one seventh or .142857)

Fractions, Franctions and Percent

1/8
(one eights or .125)

Fractions, Franctions and Percent

1/9
(one ninth or .(1))

Fractions, Franctions and Percent

Metric, Distance and Length

°C
(degrees Celsius)

Temperature increment conversion, Temperature increment

°C
(degrees Celsius)

Temperature scale conversion, Temperature

°D
(degrees Delisle)

Historical temperature increment conversion, Temperature increment

°D
(degrees Delisle)

Historical temperature scales, Temperature

°F
(degrees Fahrenheit)

Temperature increment conversion, Temperature increment

°F
(degrees Fahrenheit)

Temperature scale conversion, Temperature

ƒ℥
(fluid ounce)

Apothecaries, Capacity and volume

ƒʒ
(fluid dram)

Apothecaries, Capacity and volume

°N
(degrees Newton)

Historical temperature increment conversion, Temperature increment

°N
(degrees Newton)

Historical temperature scales, Temperature

°R
(degrees Rankine)

Historical temperature increment conversion, Temperature increment

°R
(degrees Rankine)

Historical temperature scales, Temperature

°Re
(degrees Reaumur)

Temperature increment conversion, Temperature increment

°Re
(degrees Reaumur)

Temperature scale conversion, Temperature

°Rø
(degrees Rømer)

Historical temperature increment conversion, Temperature increment

°Rø
(degrees Rømer)

Historical temperature scales, Temperature

ʒ
(dram (drachm))

Apothecaries, Mass and weight

Θ
(Planck temperature)

Temperature increment conversion, Temperature increment

Θ
(Planck temperature)

Temperature scale conversion, Temperature

µCi
(microcurie)

Other units, Radioactivity

µl
(microliter)

Metric, Capacity and volume

μm
(Diameter in micrometres)

Wire diameter, Wire and Needle Gauge

μm²
(Section area in square micrometres)

Wire section area, Wire and Needle Gauge

µ, mc
(micro)

Metric Prefixes, Franctions and Percent

Ancient Greek, Historical Lengths

## A

a
(atto)

Metric Prefixes, Franctions and Percent

Free Fall Acceleration (Solar System), Acceleration

Free Fall Acceleration (Solar System), Acceleration

Free Fall Acceleration (Solar System), Acceleration

Free Fall Acceleration (Solar System), Acceleration

Free Fall Acceleration (Solar System), Acceleration

Free Fall Acceleration (Solar System), Acceleration

Free Fall Acceleration (Solar System), Acceleration

Free Fall Acceleration (Solar System), Acceleration

Free Fall Acceleration (Solar System), Acceleration

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

British (Imperial) And U.S. System, Historical Units of Area

U.S. Liquid Measure, Capacity and volume

U.S. and British Imperial, Flow rate by volume

U.S. and British Imperial, Flow rate by volume

U.S. and British Imperial, Flow rate by volume

U.S. and British Imperial, Flow rate by volume

U.S. and British Imperial, Flow rate by volume

Ancient Roman, Historical Lengths

Old Spanish, Historical weights

British (Imperial) Nautical Measure, Distance and Length

British (Imperial) Nautical Measure, Distance and Length

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

United Kingdom and Ireland Shoe Size, Shoe Size Conversion

Afghan Afghani
(AFN)

Asian Currencies, Currency

Ancient Greek, Historical Units of Area

Ancient Greek, Historical Lengths

Albanian Lek
(ALL)

European Currencies, Currency

Algerian Dinar
(DZD)

African Curriencies, Currency

Old Portuguese Liquid Measure, Historical Units of Capacity

Old Swedish, Historical Lengths

Old Portuguese Dry Measure, Historical Units of Capacity

Ancient Egypt, Historical Lengths

Music Wire Gauges, Wire and Needle Gauge

Wire Gauges, Wire and Needle Gauge

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

amu
(atomic mass unit)

Metric, Mass and weight

Angolan Kwanza
(AOA)

African Curriencies, Currency

Artillery, Circular measure

Artillery, Circular measure

Astronomical, Time

Astronomical, Time

apostilb
(asb)

Other units, Illuminance

Old Spanish, Historical Units of Area

Argentine Peso
(ARS)

South American Currencies, Currency

Armenian Dram
(AMD)

Asian Currencies, Currency

Ancient Greek, Historical Units of Area

Old French, Historical Units of Area

Old French, Historical Lengths

Old Portuguese, Historical weights

Old Spanish Liquid Measure, Historical Units of Capacity

Old Portuguese, Historical weights

Old Spanish, Historical weights

Old Russian, Historical Lengths

Aruban Florin
(AWG)

Currencies of the Caribbean, Currency

asb
(apostilb)

Other units, Illuminance

Ring Sizes in Japan, China, Korea, Hong Kong, Taiwan, Singapore, Ring size

Asian Shoe Size, Shoe Size Conversion

astronomical unit
(au)

Astronomical, Distance and Length

Thai units, Mass and weight

atm
(physical atmosphere)

Atmosphere, Stress and Pressure

atomic mass unit
(amu)

Metric, Mass and weight

Atomic Physics Units, Force

atto
(a)

Metric Prefixes, Franctions and Percent

au
(astronomical unit)

Astronomical, Distance and Length

Australia and New Zealand Shoe Size, Shoe Size Conversion

Australian Dollar, $
(AUD)

Major World Currencies, Currency

Australia and New Zealand Shoe Size, Shoe Size Conversion

Australia and New Zealand Shoe Size, Shoe Size Conversion

Azerbaijani Manat
(AZN)

Asian Currencies, Currency

Old Spanish Liquid Measure, Historical Units of Capacity

## B

Bahamian Dollar
(BSD)

Currencies of the Caribbean, Currency

Bahraini Dinar
(BHD)

Middle East Currencies, Currency

Thai units, Mass and weight

Thai units, Mass and weight

Quantity Units, Franctions and Percent

Bangladeshi Taka
(BDT)

Asian Currencies, Currency

Metric, Stress and Pressure

Barbadian Dollar
(BBD)

Currencies of the Caribbean, Currency

British Imperial Measure before 1963, Distance and Length

English brewery cask units, Capacity and volume

English wine cask units, Capacity and volume

British Imperial Liquid And Dry, Capacity and volume

U.S. Dry Measure, Capacity and volume

U.S. Measure, Historical Units of Capacity

U.S. Measure, Historical Units of Capacity

barrel of oil equivalent
(BOE)

Oil Energy Equivalent, Energy and Work

U.S. Liquid Measure, Capacity and volume

U.S. and British Imperial, Flow rate by volume

U.S. and British Imperial, Flow rate by volume

U.S. and British Imperial, Flow rate by volume

U.S. and British Imperial, Flow rate by volume

U.S. and British Imperial, Flow rate by volume

Biblical and Talmudic Liquid Measure (Old Testament), Historical Units of Capacity

BBOE
(billion barrel of oil equivalent)

Oil Energy Equivalent, Energy and Work

becquerel
(Bq)

SI radioactivity units, Radioactivity

Biblical, Historical weights

Belarusian Ruble
(BYN)

European Currencies, Currency

Belize Dollar
(BZD)

Central American Currencies, Currency

Ancient Greek, Historical Units of Area

Old Russian, Historical weights

Bermudan Dollar
(BMD)

North American Currencies, Currency

Ancient Roman, Historical weights

Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity

Bhutanese Ngultrum
(BTN)

Asian Currencies, Currency

Thai units, Mass and weight

Oil Energy Equivalent, Energy and Work

Common Radix Numerals, Roman numbers, Hex, Octal and more

Old Swedish, Historical weights

Data Storage and Transmission, Computer storage

bit per second
(bps)

Basic Units of Data Transfer Rate, Data transfer rate

Other units, Illuminance

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

boardfoot, board-foot
(fbmm, bdft, bf)

Lumber measure, Capacity and volume

BOE
(barrel of oil equivalent)

Oil Energy Equivalent, Energy and Work

Bolivian Boliviano
(BOB)

South American Currencies, Currency

British Imperial Measure before 1963, Distance and Length

The American System (US Customary Units) and British Imperial Measures, Distance and Length

European Currencies, Currency

Old Spanish Liquid Measure, Historical Units of Capacity

Botswanan Pula
(BWP)

African Curriencies, Currency

bps
(bit per second)

Basic Units of Data Transfer Rate, Data transfer rate

Bq
(becquerel)

SI radioactivity units, Radioactivity

Old Portuguese, Historical Lengths

Old Portuguese, Historical Units of Area

Old Spanish, Historical Lengths

Brazilian Real
(BRL)

South American Currencies, Currency

Brazilian Shoe Size, Shoe Size Conversion

Apothecaries, Capacity and volume

Other units, Illuminance

Avoirdupois (U.S. / British), Mass and weight

British system, Fuel economy

U.S. and British Imperial, Flow rate by volume

U.S. and British Imperial, Flow rate by volume

U.S. and British Imperial, Flow rate by volume

U.S. and British Imperial, Flow rate by volume

U.S. and British Imperial, Flow rate by volume

Major World Currencies, Currency

British Thermal Unit
(BTU)

British and American, Energy and Work

British Thermal Unit per hour
(BTU/hr)

British and American, Power

British Thermal Unit per minute
(BTU/min)

British and American, Power

British Thermal Unit per second
(BTU/s)

British and American, Power

Brunei Dollar
(BND)

Asian Currencies, Currency

B/s
(byte per second)

Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate

B/s
(byte per second)

Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate

BTU
(British Thermal Unit)

British and American, Energy and Work

bu
(bushel)

U.S. Measure, Historical Units of Capacity

bu
(bushel)

British Imperial Liquid And Dry, Capacity and volume

bu
(bushel)

U.S. Dry Measure, Capacity and volume

Bulgarian Lev
(BGN)

European Currencies, Currency

Burundian Franc
(BIF)

African Curriencies, Currency

bushel
(bu)

U.S. Measure, Historical Units of Capacity

bushel
(bu)

British Imperial Liquid And Dry, Capacity and volume

bushel
(bu)

U.S. Dry Measure, Capacity and volume

English wine cask units, Capacity and volume

British Imperial Measure before 1963, Distance and Length

Japanese, Distance and Length

Chinese units of 1915, Distance and Length

Data Storage and Transmission, Computer storage

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

byte per second
(B/s)

Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate

byte per second
(B/s)

Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

## C

c
(centi)

Metric Prefixes, Franctions and Percent

Old Spanish, Historical Units of Area

cable length
(cbl)

International Nautical Measure, Distance and Length

Computer Connection Speed, Data transfer rate

Old Spanish Dry Measure, Historical Units of Capacity

cal
(calorie)

Common Units, Energy and Work

Common units, Time

British Imperial Measure before 1963, Distance and Length

calorie
(cal)

Common Units, Energy and Work

Common Units, Power

Common Units, Power

Common Units, Power

Cambodian Riel
(KHR)

Asian Currencies, Currency

Old Portuguese Liquid Measure, Historical Units of Capacity

Canadian Dollar, $
(CAD)

Major World Currencies, Currency

Hong Kong, Mass and weight

Hong Kong, Mass and weight

Indian units (Akbar system), Mass and weight

Old Spanish Liquid Measure, Historical Units of Capacity

Old Portuguese Liquid Measure, Historical Units of Capacity

Cape Verdean Escudo
(CVE)

African Curriencies, Currency

Troy, Mass and weight

carat
(ct)

Metric, Mass and weight

Hong Kong, Mass and weight

Cayman Islands Dollar
(KYD)

Currencies of the Caribbean, Currency

cbl
(cable length)

International Nautical Measure, Distance and Length

cc
(cubic centimeter)

Metric, Historical Units of Capacity

cc
(cubic centimeter)

Metric, Capacity and volume

ccf
(centum cubic feet)

British and U.S. derivatives of length units, Capacity and volume

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Hong Kong units, Distance and Length

Old Spanish, Historical Units of Area

Old Spanish Dry Measure, Historical Units of Capacity

Celsius heat unit
(CHU)

Common Units, Energy and Work

centi
(c)

Metric Prefixes, Franctions and Percent

Metric, Mass and weight

centiliter
(cl)

Metric, Capacity and volume

centimeter
(cm)

Metric, Historical Lengths

centimeter
(cm)

Metric, Distance and Length

Water (at 39.2°F, 4°C), Stress and Pressure

centum cubic feet
(ccf)

British and U.S. derivatives of length units, Capacity and volume

Ancient Roman, Historical Units of Area

Old Russian Dry Measure, Historical Units of Capacity

CFA Franc BCEAO
(XOF)

African Curriencies, Currency

CFA Franc BEAC
(XAF)

African Curriencies, Currency

ch
(Ramsden's (engineers') chain)

US Surveyors' Measure, Distance and Length

ch
(Gunter's (surveyors') chain)

US Surveyors' Measure, Distance and Length

ch
(Gurley's chain)

US Surveyors' Measure, Distance and Length

British Imperial Measure before 1963, Distance and Length

The American System (US Customary Units) and British Imperial Measures, Distance and Length

Thai units, Mass and weight

Old Russian Liquid Measure, Historical Units of Capacity

Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity

Old Russian Liquid Measure, Historical Units of Capacity

U.S. and Canada Customary Shoe Size, Shoe Size Conversion

United Kingdom and Ireland Shoe Size, Shoe Size Conversion

Chilean Peso
(CLP)

South American Currencies, Currency

South American Currencies, Currency

Chinese Yuan, ¥
(CNY)

Major World Currencies, Currency

Asian Currencies, Currency

Indian units (Akbar system), Mass and weight

Chinese units of 1915, Distance and Length

Chinese units of 1930, Distance and Length

Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity

Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity

Japanese, Distance and Length

Japanese, Area

CHU
(Celsius heat unit)

Common Units, Energy and Work

Ci
(curie)

Other units, Radioactivity

Typographical (Europe - Didot system), Distance and Length

circle
(circumference)

Common Units, Circular measure

Units for Measuring Wire Gauges, Area

circular mil
(cmil)

Units for Measuring Wire Gauges, Area

circumference
(circle)

Common Units, Circular measure

Inner Diameter and Circumference of a Ring, Ring size

Inner Diameter and Circumference of a Ring, Ring size

cl
(centiliter)

Metric, Capacity and volume

cm
(centimeter)

Metric, Historical Lengths

cm
(centimeter)

Metric, Distance and Length

cm²
(square centimeter)

Metric, Historical Units of Area

cm³/day
(cubic centimeter per day)

Metric, Flow rate by volume

cm³/hour
(cubic centimeter per hour)

Metric, Flow rate by volume

cm³/min
(cubic centimeter per minute)

Metric, Flow rate by volume

cm³/s
(cubic centimeter per second)

Metric, Flow rate by volume

cm³/year
(cubic centimeter per year)

Metric, Flow rate by volume

Computer Connection Speed, Data transfer rate

Old Spanish, Historical Lengths

Old Spanish, Historical Lengths

Colombian Peso
(COP)

South American Currencies, Currency

Comorian Franc
(KMF)

African Curriencies, Currency

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Congolese Franc
(CDF)

African Curriencies, Currency

Old Spanish Liquid Measure, Historical Units of Capacity

Lumber measure, Capacity and volume

Old Spanish Liquid Measure, Historical Units of Capacity

Costa Rican Colón
(CRC)

Central American Currencies, Currency

Old Spanish, Historical Lengths

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

coulomb per kilogram
(C/kg)

Exposure to ionizing radiation, Radiation

Old Portuguese, Historical Lengths

Croatian Kuna
(HRK)

European Currencies, Currency

ct
(carat)

Metric, Mass and weight

cu
(cubit)

British Imperial Measure before 1963, Distance and Length

Historical Units Still In Use Today, Area

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Historical Units Still In Use Today, Area

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Historical Units Still In Use Today, Area

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Historical Units Still In Use Today, Area

Spanish Customary Units Still In Use Today, Distance and Length

Historical Units Still In Use Today, Area

Historical Units Still In Use Today, Area

Spanish Customary Units Still In Use Today, Distance and Length

Old Spanish, Historical weights

Old Spanish Dry Measure, Historical Units of Capacity

Old Spanish, Historical Units of Area

Old Spanish Liquid Measure, Historical Units of Capacity

Old Spanish Dry Measure, Historical Units of Capacity

Cuban Convertible Peso
(CUC)

Currencies of the Caribbean, Currency

Cuban Peso
(CUP)

Currencies of the Caribbean, Currency

cubic centimeter
(cc)

Metric, Historical Units of Capacity

cubic centimeter
(cc)

Metric, Capacity and volume

Common Units, Energy and Work

cubic centimeter per day
(cm³/day)

Metric, Flow rate by volume

cubic centimeter per hour
(cm³/hour)

Metric, Flow rate by volume

cubic centimeter per minute
(cm³/min)

Metric, Flow rate by volume

cubic centimeter per second
(cm³/s)

Metric, Flow rate by volume

cubic centimeter per year
(cm³/year)

Metric, Flow rate by volume

cubic decimeter
(dm³)

Metric, Capacity and volume

cubic foot
(ft³)

British and U.S. derivatives of length units, Capacity and volume

British and American, Energy and Work

cubic foot per day
(ft³/day)

U.S. and British Imperial, Flow rate by volume

cubic foot per hour
(ft³/hour)

U.S. and British Imperial, Flow rate by volume

cubic foot per minute
(ft³/min)

U.S. and British Imperial, Flow rate by volume

cubic foot per second
(ft³/s)

U.S. and British Imperial, Flow rate by volume

cubic foot per year
(ft³/year)

U.S. and British Imperial, Flow rate by volume

cubic inch
(in³)

British and U.S. derivatives of length units, Capacity and volume

cubic inch per day
(in³/day)

U.S. and British Imperial, Flow rate by volume

cubic inch per hour
(in³/hour)

U.S. and British Imperial, Flow rate by volume

cubic inch per minute
(in³/min)

U.S. and British Imperial, Flow rate by volume

cubic inch per second
(in³/s)

U.S. and British Imperial, Flow rate by volume

cubic inch per year
(in³/year)

U.S. and British Imperial, Flow rate by volume

cubic kilometer
(km³)

Metric, Capacity and volume

Astronomical, Capacity and volume

Astronomical, Capacity and volume

Astronomical, Capacity and volume

cubic meter
(m³)

Metric, Historical Units of Capacity

cubic meter
(m³)

Metric, Capacity and volume

cubic meter per day
(m³/day)

Metric, Flow rate by volume

cubic meter per hour
(m³/hour)

Metric, Flow rate by volume

cubic meter per minute
(m³/min)

Metric, Flow rate by volume

cubic meter per second
(m³/s)

Metric, Flow rate by volume

cubic meter per year
(m³/year)

Metric, Flow rate by volume

cubic mile
(mi³)

British and U.S. derivatives of length units, Capacity and volume

cubic millimeter
(mm³)

Metric, Historical Units of Capacity

cubic millimeter
(mm³)

Metric, Capacity and volume

cubic parsec
(pc³)

Astronomical, Capacity and volume

Lumber measure, Capacity and volume

cubic yard
(yd³)

British and U.S. derivatives of length units, Capacity and volume

British and American, Energy and Work

Biblical, Historical Lengths

cubit
(cu)

British Imperial Measure before 1963, Distance and Length

Ancient Roman, Historical Lengths

Old Spanish, Historical Lengths

Old Spanish, Historical Units of Area

Old Spanish, Historical Lengths

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Chinese units of 1915, Distance and Length

Chinese units of 1930, Distance and Length

Chinese units of 1930, Capacity and volume

Cooking (International), Capacity and volume

Cooking (U.S.), Capacity and volume

curie
(Ci)

Other units, Radioactivity

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Czech Republic Koruna
(CZK)

European Currencies, Currency

## D

d
(deci)

Metric Prefixes, Franctions and Percent

da
(deka)

Metric Prefixes, Franctions and Percent

Ancient Greek, Historical Lengths

Danish Krone
(DKK)

European Currencies, Currency

Chinese units since 1959, Mass and weight

Chinese units of 1930, Capacity and volume

Chinese units between 1930 and 1959, Mass and weight

Chinese units of 1915, Capacity and volume

days, hours, minutes and seconds
(Dd HH:MM:SS)

Common units, Time

Dd HH:MM:SS
(days, hours, minutes and seconds)

Common units, Time

Quantity Units, Franctions and Percent

Metric, Capacity and volume

decanewton
(dN)

International System (SI), Force

Ancient Greek, Historical Units of Area

Ancient Roman, Historical Lengths

deci
(d)

Metric Prefixes, Franctions and Percent

deciliter
(dl)

Metric, Capacity and volume

decimeter
(dm)

Metric, Distance and Length

deg
(degree)

Common Units, Circular measure

degree
(deg)

Common Units, Circular measure

Degree, Angular velocity

Degree, Angular velocity

Degree, Angular velocity

degrees Celsius
(°C)

Temperature increment conversion, Temperature increment

degrees Celsius
(°C)

Temperature scale conversion, Temperature

degrees Delisle
(°D)

Historical temperature increment conversion, Temperature increment

degrees Delisle
(°D)

Historical temperature scales, Temperature

degrees Fahrenheit
(°F)

Temperature increment conversion, Temperature increment

degrees Fahrenheit
(°F)

Temperature scale conversion, Temperature

degrees, minutes, seconds
(d°m′s″)

Common Units, Circular measure

degrees Newton
(°N)

Historical temperature increment conversion, Temperature increment

degrees Newton
(°N)

Historical temperature scales, Temperature

degrees Rankine
(°R)

Historical temperature increment conversion, Temperature increment

degrees Rankine
(°R)

Historical temperature scales, Temperature

degrees Reaumur
(°Re)

Temperature increment conversion, Temperature increment

degrees Reaumur
(°Re)

Temperature scale conversion, Temperature

degrees Rømer
(°Rø)

Historical temperature increment conversion, Temperature increment

degrees Rømer
(°Rø)

Historical temperature scales, Temperature

deka
(da)

Metric Prefixes, Franctions and Percent

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

Ancient Greek, Historical Lengths

Densities of various materials, Density

Densities of various materials, Density

Densities of various materials, Density

Densities of various materials, Density

Densities of various materials, Density

Densities of various materials, Density

Densities of various materials, Density

Densities of various materials, Density

Densities of various materials, Density

Densities of various materials, Density

Densities of various materials, Density

Densities of various materials, Density

Radiation dose examples, Radiation

Old Austrian, Historical weights

Ancient Egypt, Historical Lengths

Apothecaries, Capacity and volume

Cooking (Australian), Capacity and volume

Old Russian, Historical Units of Area

Old Russian, Historical Units of Area

Ancient Roman, Historical weights

Ancient Roman, Historical weights

Indian units (Akbar system), Mass and weight

Diameter in inches
(in)

Inner Diameter and Circumference of a Ring, Ring size

Diameter in inches
(in)

Wire diameter, Wire and Needle Gauge

Wire diameter, Wire and Needle Gauge

Inner Diameter and Circumference of a Ring, Ring size

Wire diameter, Wire and Needle Gauge

Wire diameter, Wire and Needle Gauge

Ancient Greek, Historical Lengths

Ancient Greek, Historical Lengths

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

British Imperial Measure before 1963, Distance and Length

Ancient Roman, Historical Lengths

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

Optical, Distance and Length

Ancient Greek, Historical Lengths

Other units, Radioactivity

Other units, Radioactivity

Ancient Egypt, Historical Lengths

Ancient Egypt, Historical Lengths

Djiboutian Franc
(DJF)

African Curriencies, Currency

dl
(deciliter)

Metric, Capacity and volume

dm
(decimeter)

Metric, Distance and Length

dm³
(cubic decimeter)

Metric, Capacity and volume

d°m′s″
(degrees, minutes, seconds)

Common Units, Circular measure

Ancient Greek, Historical Units of Area

Ancient Roman, Historical weights

Troy, Mass and weight

Ancient Greek, Historical Lengths

Old Russian, Historical weights

Dominican Peso
(DOP)

Currencies of the Caribbean, Currency

Historical Units Still In Use Today, Area

Old German (Prussian), Historical weights

Ancient Greek, Historical Lengths

Chinese units of 1930, Capacity and volume

Chinese units of 1915, Capacity and volume

Quantity Units, Franctions and Percent

dpm
(disintegrations per minute)

Other units, Radioactivity

dr
(dram)

Avoirdupois (U.S. / British), Mass and weight

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

Astronomical, Time

Astronomical, Time

dram
(dr)

Avoirdupois (U.S. / British), Mass and weight

dram (drachm)
(ʒ)

Apothecaries, Mass and weight

Computer Connection Speed, Data transfer rate

Ancient Roman, Historical weights

Number of Performers, Franctions and Percent

Historical Units Still In Use Today, Area

Historical Units Still In Use Today, Area

Historical Units Still In Use Today, Area

Other Radix Numerals, Roman numbers, Hex, Octal and more

dwt
(pennyweight)

Troy, Mass and weight

Metric, Torque

Metric, Torque

Historical Units Still In Use Today, Area

## E

E
(exa)

Metric Prefixes, Franctions and Percent

Computer Connection Speed, Data transfer rate

East Caribbean Dollar
(XCD)

Currencies of the Caribbean, Currency

Eb [EiB]
(exabyte [exbibyte])

Data Storage and Transmission, Computer storage

Ebit [Eibit]
(exabit [exbibit])

Data Storage and Transmission, Computer storage

Computer Connection Speed, Data transfer rate

Egyptian Pound
(EGP)

African Curriencies, Currency

electronvolt
(eV)

Common Units, Energy and Work

Old Russian, Historical Lengths

British Imperial Measure before 1963, Distance and Length

Old German (Prussian), Historical Lengths

Music Wire Gauges, Wire and Needle Gauge

Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity

Common Units, Energy and Work

Common Units, Power

Eritrean Nakfa
(ERN)

African Curriencies, Currency

Old Portuguese, Historical weights

Old Spanish, Historical Lengths

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Ethiopian Birr
(ETB)

African Curriencies, Currency

Biblical, Historical Lengths

European Standard Sizes (ISO 8653:2016, most European countries), Ring size

Continental Europe and Middle East Shoe Size, Shoe Size Conversion

eV
(electronvolt)

Common Units, Energy and Work

exa
(E)

Metric Prefixes, Franctions and Percent

exabit [exbibit]
(Ebit [Eibit])

Data Storage and Transmission, Computer storage

exabyte [exbibyte]
(Eb [EiB])

Data Storage and Transmission, Computer storage

## F

f
(femto)

Metric Prefixes, Franctions and Percent

Falkland Islands Pound
(FKP)

African Curriencies, Currency

Old Swedish, Historical Lengths

Old Spanish Dry Measure, Historical Units of Capacity

Old Spanish, Historical Units of Area

Old Spanish, Historical weights

Old Spanish, Historical weights

Old Portuguese Dry Measure, Historical Units of Capacity

fang chi (方尺)
(chi²)

Chinese units of 1915, Area

fang chi (方尺)
(chi²)

Chinese units of 1930, Area

fang cun (方寸)
(cun²)

Chinese units of 1915, Area

fang cun (方寸)
(cun²)

Chinese units of 1930, Area

fang zhang (方丈)
(zhang²)

Chinese units of 1915, Area

fang zhang (方丈)
(zhang²)

Chinese units of 1930, Area

Hong Kong units, Distance and Length

fath
(US fathom)

US Nautical Measure, Distance and Length

fath
(fathom)

International Nautical Measure, Distance and Length

fathom
(fath)

International Nautical Measure, Distance and Length

fbmm, bdft, bf
(boardfoot, board-foot)

Lumber measure, Capacity and volume

fc
(foot-candle)

Photography units, Illuminance

Historical Units Still In Use Today, Area

feet and inches
(x'y")

The American System (US Customary Units) and British Imperial Measures, Distance and Length

U.S. and Canada Customary Shoe Size, Shoe Size Conversion

U.S. and Canada Customary Shoe Size, Shoe Size Conversion

femto
(f)

Metric Prefixes, Franctions and Percent

femtosecond
(fs)

Common units, Time

Chinese units of 1915, Distance and Length

Chinese units of 1915 before 1930, Mass and weight

Chinese units of 1930, Distance and Length

Chinese units between 1930 and 1959, Mass and weight

Chinese units since 1959, Mass and weight

fg
(frigoria)

Common Units, Energy and Work

Fijian Dollar
(FJD)

Currencies of Australia and Oceania, Currency

Decimal numbers, Roman numbers, Hex, Octal and more

British Imperial Measure before 1963, Distance and Length

English brewery cask units, Capacity and volume

Old Swedish, Historical Lengths

fl dr
(fluid drachm)

British Imperial Liquid And Dry, Capacity and volume

fl dr
(fluid dram)

U.S. Liquid Measure, Capacity and volume

Quantity Units, Franctions and Percent

fl oz
(fluid ounce)

U.S. Liquid Measure, Capacity and volume

fluid drachm
(fl dr)

British Imperial Liquid And Dry, Capacity and volume

fluid dram
(ƒʒ)

Apothecaries, Capacity and volume

fluid dram
(fl dr)

U.S. Liquid Measure, Capacity and volume

fluid ounce
(oz)

U.S. Measure, Historical Units of Capacity

fluid ounce
(oz)

British Imperial Liquid And Dry, Capacity and volume

fluid ounce
(ƒ℥)

Apothecaries, Capacity and volume

fluid ounce
(fl oz)

U.S. Liquid Measure, Capacity and volume

British Imperial Liquid And Dry, Capacity and volume

Old Russian, Historical Lengths

foot
(ft)

The American System of Measures (US Customary Units), Historical Lengths

foot
(ft)

British Imperial Measure before 1963, Distance and Length

foot
(ft)

The American System (US Customary Units) and British Imperial Measures, Distance and Length

foot-candle
(fc)

Photography units, Illuminance

Other units, Illuminance

Foot and Last lengths, Shoe Size Conversion

Foot and Last lengths, Shoe Size Conversion

Foot and Last lengths, Shoe Size Conversion

Water (at 39.2°F, 4°C), Stress and Pressure

British (Imperial) And U.S. System, Speed

British (Imperial) And U.S. System, Speed

British (Imperial) And U.S. System, Speed

foot per second squared
(ft/s²)

British (Imperial) And U.S. System, Acceleration

British (Imperial) And U.S. System, Speed

foot-pound
(ft*lbs)

British and American, Energy and Work

foot pound-force per second
(ft*lbf/s)

British and American, Power

Old Swedish, Historical Lengths

Medical Needle and Catheter Gauges, Wire and Needle Gauge

Currencies of Australia and Oceania, Currency

frigoria
(fg)

Common Units, Energy and Work

frigoria per hour
(fg/h)

Common Units, Power

ft
(foot)

The American System of Measures (US Customary Units), Historical Lengths

ft
(Storage length in feet)

CNC Memory Capacity, Computer storage

ft
(Gunter's (surveyors') foot)

US Surveyors' Measure, Distance and Length

ft
(foot)

British Imperial Measure before 1963, Distance and Length

ft
(foot)

The American System (US Customary Units) and British Imperial Measures, Distance and Length

ft²
(square foot)

British (Imperial) And U.S. System, Historical Units of Area

ft³
(cubic foot)

British and U.S. derivatives of length units, Capacity and volume

ft³/day
(cubic foot per day)

U.S. and British Imperial, Flow rate by volume

ft³/hour
(cubic foot per hour)

U.S. and British Imperial, Flow rate by volume

ft³/min
(cubic foot per minute)

U.S. and British Imperial, Flow rate by volume

ft³/s
(cubic foot per second)

U.S. and British Imperial, Flow rate by volume

ft³/year
(cubic foot per year)

U.S. and British Imperial, Flow rate by volume

ft*lbs
(foot-pound)

British and American, Energy and Work

ft/s²
(foot per second squared)

British (Imperial) And U.S. System, Acceleration

Thai units, Mass and weight

Japanese, Mass and weight

US Surveyors' Measure, Distance and Length

British Imperial Measure before 1963, Distance and Length

The American System (US Customary Units) and British Imperial Measures, Distance and Length

Old Austrian, Historical Lengths

Old German (Prussian), Historical Lengths

## G

g
(gram)

Metric, Historical weights

g
(Standard acceleration of free fall on Earth)

Free Fall Acceleration (Solar System), Acceleration

g
(gram)

Metric, Mass and weight

G
(giga)

Metric Prefixes, Franctions and Percent

gal
(gallon (liquid))

U.S. Measure, Historical Units of Capacity

gal
(gallon (dry))

U.S. Measure, Historical Units of Capacity

gal
(gallon)

British Imperial Liquid And Dry, Capacity and volume

gal
(gallon)

U.S. Dry Measure, Capacity and volume

gal
(gallon)

U.S. Liquid Measure, Capacity and volume

Gal
(Galileo)

Other Units, Acceleration

gal/100km
(gallon per 100 km)

Other units, Fuel economy

gal/day
(U.S. gallon per day)

U.S. and British Imperial, Flow rate by volume

Galileo
(Gal)

Other Units, Acceleration

gallon
(gal)

British Imperial Liquid And Dry, Capacity and volume

gallon
(gal)

U.S. Dry Measure, Capacity and volume

gallon
(gal)

U.S. Liquid Measure, Capacity and volume

British and American, Energy and Work

British and American, Energy and Work

gallon (dry)
(gal)

U.S. Measure, Historical Units of Capacity

gallon (liquid)
(gal)

U.S. Measure, Historical Units of Capacity

gallon per 100 km
(gal/100km)

Other units, Fuel economy

U.S. system, Fuel economy

U.S. system, Fuel economy

gal/year
(U.S. gallon per year)

U.S. and British Imperial, Flow rate by volume

Gambian Dalasi
(GMD)

African Curriencies, Currency

Old Russian Dry Measure, Historical Units of Capacity

Radiation dose examples, Radiation

Gb [GiB]
(gigabyte [gibibyte])

Data Storage and Transmission, Computer storage

Gbit [Gibit]
(gigabit [gibibit])

Data Storage and Transmission, Computer storage

Gbps
(gigabit per second)

Basic Units of Data Transfer Rate, Data transfer rate

GBq
(gigabecquerel)

SI radioactivity units, Radioactivity

GB/s
(gigabyte per second)

Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate

g/day
(gram per day)

Metric, Flow rate by mass

Geographical (German), Distance and Length

Georgian Lari
(GEL)

Asian Currencies, Currency

Biblical, Historical weights

Ancient Roman, Historical Units of Area

Artillery, Circular measure

Chinese units of 1915, Capacity and volume

Chinese units of 1930, Capacity and volume

gf/cm²
(gram per square centimeter)

Metric, Stress and Pressure

Ghanaian Cedi
(GHS)

African Curriencies, Currency

g/hour
(gram per hour)

Metric, Flow rate by mass

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

gibibyte per second
(GiB/s)

Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Gibraltar Pound
(GIP)

European Currencies, Currency

GiB/s
(gibibyte per second)

Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate

giga
(G)

Metric Prefixes, Franctions and Percent

gigabecquerel
(GBq)

SI radioactivity units, Radioactivity

gigabit [gibibit]
(Gbit [Gibit])

Data Storage and Transmission, Computer storage

gigabit per second
(Gbps)

Basic Units of Data Transfer Rate, Data transfer rate

gigabyte [gibibyte]
(Gb [GiB])

Data Storage and Transmission, Computer storage

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

gigabyte per second
(GB/s)

Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

Common Units, Power

Common Units, Power

Common Units, Power

gigatonne of coal equivalent
(Gtce)

Coal Energy Equivalent, Energy and Work

gigatonne of oil equivalent
(Gtoe)

Oil Energy Equivalent, Energy and Work

U.S. Liquid Measure, Capacity and volume

Apothecaries, Capacity and volume

g/min
(gram per minute)

Metric, Flow rate by mass

British Imperial Measure before 1963, Distance and Length

Gold (troy ounce)
(XAU)

Other Currencies and More, Currency

Wire Gauges, Wire and Needle Gauge

Japanese, Capacity and volume

gph
(U.S. gallon per hour)

U.S. and British Imperial, Flow rate by volume

gpm
(U.S. gallon per minute)

U.S. and British Imperial, Flow rate by volume

Computer Connection Speed, Data transfer rate

gps
(U.S. gallon per second)

U.S. and British Imperial, Flow rate by volume

gr
(grain)

Apothecaries, Mass and weight

gr
(grain)

Avoirdupois (U.S. / British), Mass and weight

grad
(grade)

Common Units, Circular measure

grade
(grad)

Common Units, Circular measure

Ancient Roman, Historical Lengths

grain
(gr)

Apothecaries, Mass and weight

Troy, Mass and weight

grain
(gr)

Avoirdupois (U.S. / British), Mass and weight

gram
(g)

Metric, Historical weights

gram
(g)

Metric, Mass and weight

Gravitational Metric System, Force

Metric, Torque

Metric, Torque

gram per cubic centimeter
(g/cm³)

Metric System, Density

gram per cubic decimeter
(g/dm³)

Metric System, Density

gram per cubic meter
(g/m³)

Metric System, Density

gram per day
(g/day)

Metric, Flow rate by mass

gram per hour
(g/hour)

Metric, Flow rate by mass

gram per litre
(g/L)

Metric System, Density

gram per millilitre
(g/mL)

Metric System, Density

gram per minute
(g/min)

Metric, Flow rate by mass

gram per second
(g/s)

Metric, Flow rate by mass

gram per square centimeter
(gf/cm²)

Metric, Stress and Pressure

gram per year
(g/year)

Metric, Flow rate by mass

Old German (Prussian), Historical weights

Old Spanish, Historical weights

Old Portuguese, Historical weights

grave-force
(Gf)

Gravitational Metric System, Force

gravet-force
(gf)

Gravitational Metric System, Force

Illuminance examples, Illuminance

Quantity Units, Franctions and Percent

Quantity Units, Franctions and Percent

Greek numerals, Roman numbers, Hex, Octal and more

Common units, Time

Quantity Units, Franctions and Percent

g/s
(gram per second)

Metric, Flow rate by mass

Gtce
(gigatonne of coal equivalent)

Coal Energy Equivalent, Energy and Work

Gtoe
(gigatonne of oil equivalent)

Oil Energy Equivalent, Energy and Work

Guatemalan Quetzal
(GTQ)

Central American Currencies, Currency

Guernsey Pound
(GGP)

European Currencies, Currency

Guinean Franc
(GNF)

African Curriencies, Currency

US Surveyors' Measure, Distance and Length

US Surveyors' Measure, Distance and Length

US Surveyors' Measure, Distance and Length

US Surveyors' Measure, Distance and Length

US Surveyors' Measure, Distance and Length

Gurley's chain
(ch)

US Surveyors' Measure, Distance and Length

US Surveyors' Measure, Distance and Length

Guyanaese Dollar
(GYD)

South American Currencies, Currency

g/year
(gram per year)

Metric, Flow rate by mass

## H

h
(hecto)

Metric Prefixes, Franctions and Percent

Haitian Gourde
(HTG)

Currencies of the Caribbean, Currency

Quantity Units, Franctions and Percent

half or .5
(1/2)

Fractions, Franctions and Percent

Ancient Greek, Historical Lengths

hand
(hd)

British Imperial Measure before 1963, Distance and Length

The American System (US Customary Units) and British Imperial Measures, Distance and Length

Biblical, Historical Lengths

Chinese units of 1915, Distance and Length

Chinese units of 1930, Distance and Length

Chinese units of 1915 before 1930, Mass and weight

Chinese units between 1930 and 1959, Mass and weight

Chinese units since 1959, Mass and weight

Ancient Greek, Historical Lengths

Thai units, Mass and weight

hd
(hand)

British Imperial Measure before 1963, Distance and Length

Metric, Historical Units of Area

hecto
(h)

Metric Prefixes, Franctions and Percent

hectoliter
(hl)

Metric, Capacity and volume

hectopascal
(hPa)

Metric, Stress and Pressure

Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity

Ancient Greek, Historical Units of Area

Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity

Ancient Greek, Historical Units of Area

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

Ancient Greek, Historical Lengths

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

Common Radix Numerals, Roman numbers, Hex, Octal and more

h ft
(hoppus foot, hoppus cube)

Lumber measure, Capacity and volume

Biblical and Talmudic Liquid Measure (Old Testament), Historical Units of Capacity

Ancient Greek, Historical Lengths

Japanese, Distance and Length

hl
(hectoliter)

Metric, Capacity and volume

English brewery cask units, Capacity and volume

English wine cask units, Capacity and volume

Honduran Lempira
(HNL)

Central American Currencies, Currency

Hong Kong Dollar, $
(HKD)

Major World Currencies, Currency

Hong Kong Shoe Size, Shoe Size Conversion

hoppus foot, hoppus cube
(h ft)

Lumber measure, Capacity and volume

hoppus ton
(HT)

Lumber measure, Capacity and volume

horizontal pitch
(HP)

Computer Equipment, Distance and Length

horsepower, boiler
(hp(S))

Common Units, Power

horsepower, electric
(hp(E))

Common Units, Power

horsepower hour
(hp*h)

Common Units, Energy and Work

Common Units, Power

Common Units, Power

horsepower, metric
(hp(M))

Common Units, Power

Radiation dose examples, Radiation

Data Transfer Time (older, 1024-based), Data transfer rate

Data Transfer Time (current, 1000-based), Data transfer rate

Data Transfer Time (older, 1024-based), Data transfer rate

Data Transfer Time (current, 1000-based), Data transfer rate

HP
(horizontal pitch)

Computer Equipment, Distance and Length

hPa
(hectopascal)

Metric, Stress and Pressure

hp*h
(horsepower hour)

Common Units, Energy and Work

HT
(hoppus ton)

Lumber measure, Capacity and volume

Quantity Units, Franctions and Percent

Hungarian Forint
(HUF)

European Currencies, Currency

Chinese units of 1915, Distance and Length

Chinese units of 1930, Distance and Length

Chinese units since 1959, Mass and weight

Chinese units of 1915, Capacity and volume

Japanese, Mass and weight

## I

Icelandic Króna
(ISK)

European Currencies, Currency

Wire Gauges, Wire and Needle Gauge

in
(Diameter in inches)

Wire diameter, Wire and Needle Gauge

in
(inch)

The American System of Measures (US Customary Units), Historical Lengths

in
(inch)

British Imperial Measure before 1963, Distance and Length

in
(inch)

The American System (US Customary Units) and British Imperial Measures, Distance and Length

in²
(Section area in square inches)

Wire section area, Wire and Needle Gauge

in²
(square inch)

British (Imperial) And U.S. System, Historical Units of Area

in³
(cubic inch)

British and U.S. derivatives of length units, Capacity and volume

in³/day
(cubic inch per day)

U.S. and British Imperial, Flow rate by volume

in³/hour
(cubic inch per hour)

U.S. and British Imperial, Flow rate by volume

in³/min
(cubic inch per minute)

U.S. and British Imperial, Flow rate by volume

in³/s
(cubic inch per second)

U.S. and British Imperial, Flow rate by volume

in³/year
(cubic inch per year)

U.S. and British Imperial, Flow rate by volume

Old Russian, Historical Lengths

inch
(in)

The American System of Measures (US Customary Units), Historical Lengths

inch
(in)

British Imperial Measure before 1963, Distance and Length

inch
(in)

The American System (US Customary Units) and British Imperial Measures, Distance and Length

Mercury, Stress and Pressure

Water (at 39.2°F, 4°C), Stress and Pressure

British (Imperial) And U.S. System, Speed

British (Imperial) And U.S. System, Speed

British (Imperial) And U.S. System, Speed

inch per second squared
(in/s²)

British (Imperial) And U.S. System, Acceleration

British (Imperial) And U.S. System, Speed

Indian Rupee
(INR)

Asian Currencies, Currency

Indonesian Rupiah
(IDR)

Asian Currencies, Currency

in/s²
(inch per second squared)

British (Imperial) And U.S. System, Acceleration

Iranian Rial
(IRR)

Middle East Currencies, Currency

Iraqi Dinar
(IQD)

Middle East Currencies, Currency

Computer Connection Speed, Data transfer rate

Israeli New Sheqel
(ILS)

Middle East Currencies, Currency

Ancient Egypt, Historical Lengths

## J

J
(joule)

International System (SI), Energy and Work

Jamaican Dollar
(JMD)

Currencies of the Caribbean, Currency

Japanese Yen, ¥
(JPY)

Major World Currencies, Currency

Jersey Pound
(JEP)

European Currencies, Currency

Chinese units between 1930 and 1959, Mass and weight

Chinese units since 1959, Mass and weight

Chinese units of 1915 before 1930, Mass and weight

Jordanian Dinar
(JOD)

Asian Currencies, Currency

joule
(J)

International System (SI), Energy and Work

Common Units, Power

Common Units, Power

Common Units, Power

Japanese, Distance and Length

Common units, Time

## K

k
(kilo)

Metric Prefixes, Franctions and Percent

K
(kelvin)

Temperature increment conversion, Temperature increment

K
(kelvin)

Temperature scale conversion, Temperature

Ancient Greek, Historical Lengths

Japanese, Mass and weight

Old Austrian, Historical weights

Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity

Kazakhstani Tenge
(KZT)

Asian Currencies, Currency

Kbit [Kibit]
(kilobit [kibibit])

Data Storage and Transmission, Computer storage

Kb [KiB]
(kilobyte [kibybyte])

Data Storage and Transmission, Computer storage

kBOE
(kilobarrel of oil equivalent)

Oil Energy Equivalent, Energy and Work

Kbps
(kilobit per second)

Basic Units of Data Transfer Rate, Data transfer rate

kBq
(kilobecquerel)

SI radioactivity units, Radioactivity

KB/s
(kilobyte per second)

Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate

kcal
(kilocalorie)

Common Units, Energy and Work

Kcmil
(Section area in thousands of circular mils)

Wire section area, Wire and Needle Gauge

kcmil, MCM
(thousand of circular mils)

Units for Measuring Wire Gauges, Area

kelvin
(K)

Temperature increment conversion, Temperature increment

kelvin
(K)

Temperature scale conversion, Temperature

Kenyan Shilling
(KES)

African Curriencies, Currency

Japanese, Distance and Length

Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity

Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity

kg
(kilogram)

Metric, Historical weights

kg
(kilogram)

Metric, Mass and weight

kg/day
(kilogram per day)

Metric, Flow rate by mass

kgf/cm²
(kilogram per square centimeter)

Metric, Stress and Pressure

kgf/m²
(kilogram per square meter)

Metric, Stress and Pressure

kg/hour
(kilogram per hour)

Metric, Flow rate by mass

kg/min
(kilogram per minute)

Metric, Flow rate by mass

kg/s
(kilogram per second)

Metric, Flow rate by mass

kg/year
(kilogram per year)

Metric, Flow rate by mass

Decimal numbers, Roman numbers, Hex, Octal and more

Thai units, Distance and Length

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

kibibyte per second
(KiB/s)

Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

KiB/s
(kibibyte per second)

Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate

English brewery cask units, Capacity and volume

kilo
(k)

Metric Prefixes, Franctions and Percent

kilobarrel of oil equivalent
(kBOE)

Oil Energy Equivalent, Energy and Work

kilobecquerel
(kBq)

SI radioactivity units, Radioactivity

kilobit [kibibit]
(Kbit [Kibit])

Data Storage and Transmission, Computer storage

kilobit per second
(Kbps)

Basic Units of Data Transfer Rate, Data transfer rate

kilobyte [kibybyte]
(Kb [KiB])

Data Storage and Transmission, Computer storage

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

kilobyte per second
(KB/s)

Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

kilocalorie
(kcal)

Common Units, Energy and Work

Common Units, Power

Common Units, Power

Common Units, Power

kilogram
(kg)

Metric, Historical weights

kilogram
(kg)

Metric, Mass and weight

kilogram-force
(kgf)

Gravitational Metric System, Force

kilogram-force centimeter
(kgf.cm)

Metric, Torque

kilogram-force meter
(kgf.m)

Metric, Torque

Common Units, Power

Liquefied Natural Gas (LNG) Energy Equivalent, Energy and Work

Liquefied Natural Gas (LNG) Energy Equivalent, Energy and Work

Liquefied Petrolium Gas (LPG) Energy Equivalent, Energy and Work

Liquefied Petrolium Gas (LPG) Energy Equivalent, Energy and Work

TNT Energy Equivalent, Energy and Work

kilogram per cubic centimeter
(kg/cm³)

Metric System, Density

kilogram per cubic decimeter
(kg/dm³)

Metric System, Density

kilogram per cubic meter
(kg/m³)

Metric System, Density

kilogram per day
(kg/day)

Metric, Flow rate by mass

kilogram per hour
(kg/hour)

Metric, Flow rate by mass

kilogram per litre
(kg/L)

Metric System, Density

kilogram per millilitre
(kg/mL)

Metric System, Density

kilogram per minute
(kg/min)

Metric, Flow rate by mass

kilogram per second
(kg/s)

Metric, Flow rate by mass

kilogram per square centimeter
(kgf/cm²)

Metric, Stress and Pressure

kilogram per square meter
(kgf/m²)

Metric, Stress and Pressure

kilogram per year
(kg/year)

Metric, Flow rate by mass

kilojoule
(kJ)

International System (SI), Energy and Work

kilometer
(km)

Metric, Historical Lengths

kilometer
(km)

Metric, Distance and Length

Metric, Speed

Metric, Speed

kilometer per second
(km/s)

Metric, Speed

kilometer per second squared
(km/s²)

Metric, Acceleration

Metric, Speed

kilonewton
(kN)

International System (SI), Force

Metric, Mass and weight

kilonewton per square meter
(kN/m²)

Metric, Stress and Pressure

kilopascal
(kPa)

Metric, Stress and Pressure

Avoirdupois (U.S. / British), Mass and weight

Metric, Mass and weight

kilowatt hour
(kW*h)

Common Units, Energy and Work

Japanese, Mass and weight

Historical Units Still In Use Today, Area

kJ
(kilojoule)

International System (SI), Energy and Work

Old Austrian, Historical Lengths

Ancient Roman, Historical Units of Area

km
(kilometer)

Metric, Historical Lengths

km
(kilometer)

Metric, Distance and Length

km²
(square kilometer)

Metric, Historical Units of Area

km³
(cubic kilometer)

Metric, Capacity and volume

km/gal
(km per gallon)

Other units, Fuel economy

km/l
(km per litre)

Metric system, Fuel economy

km per gallon
(km/gal)

Other units, Fuel economy

km per litre
(km/l)

Metric system, Fuel economy

km/s²
(kilometer per second squared)

Metric, Acceleration

kN
(kilonewton (on Earth surface))

Metric, Mass and weight

Ancient Egypt, Historical Lengths

kN/m²
(kilonewton per square meter)

Metric, Stress and Pressure

Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity

Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity

Japanese, Capacity and volume

Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity

Ancient Greek, Historical Lengths

Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity

Old Russian, Historical Lengths

Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity

Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity

kPa
(kilopascal)

Metric, Stress and Pressure

ksi
(thousand pounds per square inch)

British and U.S. (Imperial system), Stress and Pressure

Kuwaiti Dinar
(KWD)

Middle East Currencies, Currency

Old Swedish, Historical Lengths

kW*h
(kilowatt hour)

Common Units, Energy and Work

Thai units, Capacity and volume

Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity

Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity

Kyrgystani Som
(KGS)

Asian Currencies, Currency

## L

l
(liter)

Metric, Historical Units of Capacity

l
(liter)

Metric, Capacity and volume

L
(Planck length)

Natural units, Distance and Length

l/100km
(litres per 100 km)

Metric system, Fuel economy

l/10km
(litres per 10 km)

Metric system, Fuel economy

L⁻¹MT⁻²
(Planck pressure)

Natural units, Stress and Pressure

L²MT⁻²
(Planck energy)

Natural units, Energy and Work

L³
(Planck volume)

Natural units, Capacity and volume

Old Spanish, Historical Units of Area

British Imperial Measure before 1963, Distance and Length

The American System (US Customary Units) and British Imperial Measures, Distance and Length

Laotian Kip
(LAK)

Asian Currencies, Currency

Foot and Last lengths, Shoe Size Conversion

Foot and Last lengths, Shoe Size Conversion

Foot and Last lengths, Shoe Size Conversion

l atm
(liter-atmosphere)

Common Units, Energy and Work

lb
(pound)

Avoirdupois (U.S.), Historical weights

lb
(pound)

Avoirdupois (U.S. / British), Mass and weight

lb/day
(pound per day)

U.S. and British Imperial, Flow rate by mass

lb/hour
(pound per hour)

U.S. and British Imperial, Flow rate by mass

lb/min
(pound per minute)

U.S. and British Imperial, Flow rate by mass

lb/s
(pound per second)

U.S. and British Imperial, Flow rate by mass

lb/year
(pound per year)

U.S. and British Imperial, Flow rate by mass

l/day
(liter per day)

Metric, Flow rate by volume

British Imperial Measure before 1963, Distance and Length

The American System (US Customary Units) and British Imperial Measures, Distance and Length

Old Spanish, Historical Units of Area

Lebanese Pound
(LBP)

African Curriencies, Currency

Old Spanish, Historical Lengths

Old Spanish, Historical Lengths

Lesotho Loti
(LSL)

African Curriencies, Currency

Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity

Ancient Roman, Historical Lengths

Acute radiation syndrome, Radiation

l/hour
(liter per hour)

Metric, Flow rate by volume

Chinese units of 1915 before 1930, Mass and weight

Chinese units since 1959, Mass and weight

Chinese units between 1930 and 1959, Mass and weight

Liberian Dollar
(LRD)

African Curriencies, Currency

Old Spanish, Historical weights

Ancient Roman, Historical weights

Libyan Dinar
(LYD)

African Curriencies, Currency

Ancient Greek, Historical Lengths

Old French, Historical Lengths

Old French, Historical Lengths

Old French, Historical Lengths

Old French, Historical Lengths

Grace Hopper's units of distance, Distance and Length

Astronomical, Distance and Length

Grace Hopper's units of distance, Distance and Length

Grace Hopper's units of distance, Distance and Length

Astronomical, Distance and Length

Astronomical, Distance and Length

Old French, Historical Lengths

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Old Russian, Historical Lengths

British Imperial Measure before 1963, Distance and Length

The American System (US Customary Units) and British Imperial Measures, Distance and Length

Old Spanish, Historical Lengths

Old Portuguese, Historical Lengths

Old Austrian, Historical Lengths

Old German (Prussian), Historical Lengths

Old Swedish, Historical Lengths

Old Swedish, Historical Lengths

Old Swedish, Historical weights

liter
(l)

Metric, Historical Units of Capacity

liter
(l)

Metric, Capacity and volume

liter-atmosphere
(l atm)

Common Units, Energy and Work

Liquefied Natural Gas (LNG) Energy Equivalent, Energy and Work

Liquefied Natural Gas (LNG) Energy Equivalent, Energy and Work

Liquefied Petrolium Gas (LPG) Energy Equivalent, Energy and Work

Liquefied Petrolium Gas (LPG) Energy Equivalent, Energy and Work

liter per day
(l/day)

Metric, Flow rate by volume

liter per hour
(l/hour)

Metric, Flow rate by volume

liter per minute
(l/min)

Metric, Flow rate by volume

liter per second
(l/s)

Metric, Flow rate by volume

liter per year
(l/year)

Metric, Flow rate by volume

litres per 100 km
(l/100km)

Metric system, Fuel economy

British system, Fuel economy

litres per 10 km
(l/10km)

Metric system, Fuel economy

Old French, Historical Units of Capacity

Old French, Historical weights

Chinese units since 1959, Mass and weight

Chinese units of 1930, Distance and Length

Chinese units between 1930 and 1959, Mass and weight

Chinese units of 1915, Distance and Length

Chinese units of 1915 before 1930, Mass and weight

Chinese units of 1915, Area

Chinese units of 1930, Area

Chinese units of 1915, Distance and Length

Chinese units of 1930, Distance and Length

lm/cm²
(lumen per square centimeter)

Luminamce per area units, Illuminance

lm/ft²
(lumen per square foot)

Luminamce per area units, Illuminance

l/min
(liter per minute)

Metric, Flow rate by volume

lm/in²
(lumen per square inch)

Luminamce per area units, Illuminance

lm/m²
(lumen per square meter)

Luminamce per area units, Illuminance

Biblical and Talmudic Liquid Measure (Old Testament), Historical Units of Capacity

Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity

Avoirdupois (U.S. / British), Mass and weight

British and U.S., Torque

Avoirdupois (U.S. / British), Mass and weight

British and U.S. (Imperial system), Stress and Pressure

British and U.S. (Imperial system), Stress and Pressure

U.S. and British Imperial, Flow rate by mass

U.S. and British Imperial, Flow rate by mass

U.S. and British Imperial, Flow rate by mass

U.S. and British Imperial, Flow rate by mass

U.S. and British Imperial, Flow rate by mass

Old Russian, Historical weights

Old Austrian, Historical weights

Old German (Prussian), Historical weights

l/s
(liter per second)

Metric, Flow rate by volume

Computer Connection Speed, Data transfer rate

lumen per square centimeter
(lm/cm²)

Luminamce per area units, Illuminance

lumen per square foot
(lm/ft²)

Luminamce per area units, Illuminance

lumen per square inch
(lm/in²)

Luminamce per area units, Illuminance

lumen per square meter
(lm/m²)

Luminamce per area units, Illuminance

International System (SI), Illuminance

lx
(lux (lumen per square meter))

International System (SI), Illuminance

l/year
(liter per year)

Metric, Flow rate by volume

## M

m
(meter)

Metric, Historical Lengths

m
(Storage length in meters)

CNC Memory Capacity, Computer storage

m
(milli)

Metric Prefixes, Franctions and Percent

m
(meter)

Metric, Distance and Length

M
(mega)

Metric Prefixes, Franctions and Percent

M
(Planck mass)

Natural units, Mass and weight

m²
(square meter)

Metric, Historical Units of Area

m³
(cubic meter)

Metric, Historical Units of Capacity

m³
(cubic meter)

Metric, Capacity and volume

m³/day
(cubic meter per day)

Metric, Flow rate by volume

m³/hour
(cubic meter per hour)

Metric, Flow rate by volume

m³/min
(cubic meter per minute)

Metric, Flow rate by volume

m³/s
(cubic meter per second)

Metric, Flow rate by volume

m³/year
(cubic meter per year)

Metric, Flow rate by volume

Macanese Pataca
(MOP)

Asian Currencies, Currency

Macedonian Denar
(MKD)

European Currencies, Currency

Hong Kong, Mass and weight

Hong Kong, Mass and weight

Old Russian, Historical Lengths

Malagasy Ariary
(MGA)

African Curriencies, Currency

Malawian Kwacha
(MWK)

African Curriencies, Currency

Malaysian Ringgit
(MYR)

Asian Currencies, Currency

Maldivian Rufiyaa
(MVR)

Asian Currencies, Currency

U.S. and Canada Customary Shoe Size, Shoe Size Conversion

Manx pound (Isle of Man)
(IMP)

European Currencies, Currency

Historical Units Still In Use Today, Area

Historical Units Still In Use Today, Area

Historical Units Still In Use Today, Area

Historical Units Still In Use Today, Area

Historical Units Still In Use Today, Area

Historical Units Still In Use Today, Area

Old Portuguese Dry Measure, Historical Units of Capacity

Old Spanish, Historical weights

Old Swedish, Historical weights

Old Austrian, Historical weights

Old German (Prussian), Historical weights

Indian units (Akbar system), Mass and weight

Indian units (Akbar system), Mass and weight

African Curriencies, Currency

African Curriencies, Currency

Mauritian Rupee
(MUR)

African Curriencies, Currency

Thai units, Mass and weight

Mbit [Mibit]
(megabit [mebibit])

Data Storage and Transmission, Computer storage

Mb [MiB]
(megabyte [mebibyte])

Data Storage and Transmission, Computer storage

Mbps
(megabit per second)

Basic Units of Data Transfer Rate, Data transfer rate

MBq
(megabecquerel)

SI radioactivity units, Radioactivity

MB/s
(megabyte per second)

Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate

Mcal
(megacalorie)

Common Units, Energy and Work

mcf
(mil cubic feet)

British and U.S. derivatives of length units, Capacity and volume

mcg
(microgram)

Metric, Mass and weight

mCi
(millicurie)

Other units, Radioactivity

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

mebibyte per second
(MiB/s)

Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity

Old Spanish Dry Measure, Historical Units of Capacity

mega
(M)

Metric Prefixes, Franctions and Percent

megabecquerel
(MBq)

SI radioactivity units, Radioactivity

megabit [mebibit]
(Mbit [Mibit])

Data Storage and Transmission, Computer storage

megabit per second
(Mbps)

Basic Units of Data Transfer Rate, Data transfer rate

megabyte [mebibyte]
(Mb [MiB])

Data Storage and Transmission, Computer storage

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

megabyte per second
(MB/s)

Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

megacalorie
(Mcal)

Common Units, Energy and Work

megajoule
(MJ)

International System (SI), Energy and Work

meganewton
(MN)

International System (SI), Force

meganewton per square meter
(MN/m²)

Metric, Stress and Pressure

megapascal
(MPa)

Metric, Stress and Pressure

megatonne of coal equivalent
(Mtce)

Coal Energy Equivalent, Energy and Work

megatonne of oil equivalent
(Mtoe)

Oil Energy Equivalent, Energy and Work

Ancient Egypt, Historical Lengths

Ancient Egypt, Historical Lengths

Old Austrian, Historical Lengths

Old German (Prussian), Historical Lengths

Old Portuguese Liquid Measure, Historical Units of Capacity

Old Portuguese Dry Measure, Historical Units of Capacity

meter
(m)

Metric, Historical Lengths

meter
(m)

Metric, Distance and Length

Photography units, Illuminance

Water (at 39.2°F, 4°C), Stress and Pressure

Metric, Speed

Metric, Speed

meter per second
(m/s)

Metric, Speed

meter per second squared
(m/s²)

Metric, Acceleration

Metric, Speed

metre-kilogram
(mkg)

Common Units, Energy and Work

Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity

Metric, Mass and weight

Metric Needle Size
(mm)

Knitting Needle and Crochet Hook Sizes, Wire and Needle Gauge

Metric, Mass and weight

Common Units, Power

Mexican Peso
(MXN)

North American Currencies, Currency

Mexico Shoe Size, Shoe Size Conversion

Mexico Shoe Size, Shoe Size Conversion

Mexico Shoe Size, Shoe Size Conversion

Old Russian, Historical Lengths

mfbm, mbdft, mbf
(thousand board-feet)

Lumber measure, Capacity and volume

mg
(milligram)

Metric, Mass and weight

mi
(mile)

The American System of Measures (US Customary Units), Historical Lengths

mi
(mile)

British Imperial Measure before 1963, Distance and Length

mi
(mile)

The American System (US Customary Units) and British Imperial Measures, Distance and Length

mi³
(cubic mile)

British and U.S. derivatives of length units, Capacity and volume

MiB/s
(mebibyte per second)

Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate

micro
(µ, mc)

Metric Prefixes, Franctions and Percent

microcurie
(µCi)

Other units, Radioactivity

microgram
(mcg)

Metric, Mass and weight

The American System (US Customary Units) and British Imperial Measures, Distance and Length

microliter
(µl)

Metric, Capacity and volume

micronewton
(µN)

International System (SI), Force

microroentgen
(µR)

Exposure to ionizing radiation, Radiation

microsecond
(µs)

Common units, Time

microsievert
(µSv)

Dose equivalent radiation, Radiation

British Imperial Measure before 1963, Distance and Length

The American System (US Customary Units) and British Imperial Measures, Distance and Length

mil cubic feet
(mcf)

British and U.S. derivatives of length units, Capacity and volume

Old Russian, Historical Lengths

mile
(mi)

The American System of Measures (US Customary Units), Historical Lengths

mile
(mi)

British Imperial Measure before 1963, Distance and Length

mile
(mi)

The American System (US Customary Units) and British Imperial Measures, Distance and Length

mile per British gallon
(mpg)

British system, Fuel economy

mile per hour
(mph)

British (Imperial) And U.S. System, Speed

British system, Fuel economy

British (Imperial) And U.S. System, Speed

British (Imperial) And U.S. System, Speed

British (Imperial) And U.S. System, Acceleration

British (Imperial) And U.S. System, Speed

miles per gallon
(mpg)

U.S. system, Fuel economy

Ancient Greek, Historical Lengths

Old Spanish, Historical Lengths

Old Spanish, Historical Lengths

Ancient Roman, Historical Lengths

milli
(m)

Metric Prefixes, Franctions and Percent

Metric, Stress and Pressure

millicoulomb per kilogram
(mC/kg)

Exposure to ionizing radiation, Radiation

millicurie
(mCi)

Other units, Radioactivity

milligram
(mg)

Metric, Mass and weight

Gravitational Metric System, Force

milligram per cubic centimeter
(mg/cm³)

Metric System, Density

milligram per cubic decimeter
(mg/dm³)

Metric System, Density

milligram per cubic meter
(mg/m³)

Metric System, Density

milligram per litre
(mg/L)

Metric System, Density

milligram per millilitre
(mg/mL)

Metric System, Density

milligrave-force
(mGf)

Gravitational Metric System, Force

milliliter
(ml)

Metric, Historical Units of Capacity

milliliter
(ml)

Metric, Capacity and volume

millimeter
(mm)

Metric, Historical Lengths

millimeter
(mm)

Metric, Distance and Length

Water (at 39.2°F, 4°C), Stress and Pressure

millimeter per second squared
(mm/s²)

Metric, Acceleration

millinewton
(mN)

International System (SI), Force

million board-feet
(mmfbm, mmbdft, mmbf)

Lumber measure, Capacity and volume

million BTU
(MMBTU)

British and American, Energy and Work

Natural Gas Energy Equivalent, Energy and Work

Natural Gas Energy Equivalent, Energy and Work

Centimeter-Gram-Second System (CGS), Illuminance

milliroentgen
(mR)

Exposure to ionizing radiation, Radiation

millisecond
(ms)

Common units, Time

millisievert
(mSv)

Dose equivalent radiation, Radiation

Old Swedish, Historical Lengths

min
(minim)

British Imperial Liquid And Dry, Capacity and volume

min
(minim)

U.S. Liquid Measure, Capacity and volume

Biblical, Historical weights

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

minim
(min)

British Imperial Liquid And Dry, Capacity and volume

Apothecaries, Capacity and volume

minim
(min)

U.S. Liquid Measure, Capacity and volume

Old French, Historical Units of Capacity

minute
(′)

Common Units, Circular measure

Data Transfer Time (older, 1024-based), Data transfer rate

Data Transfer Time (current, 1000-based), Data transfer rate

Data Transfer Time (older, 1024-based), Data transfer rate

Data Transfer Time (current, 1000-based), Data transfer rate

Pace (Various Sports), Speed

Pace (Various Sports), Speed

Troy, Mass and weight

Baha'i Faith Units, Historical weights

MJ
(megajoule)

International System (SI), Energy and Work

mkg
(metre-kilogram)

Common Units, Energy and Work

ml
(milliliter)

Metric, Historical Units of Capacity

ml
(milliliter)

Metric, Capacity and volume

mm
(Metric Needle Size)

Knitting Needle and Crochet Hook Sizes, Wire and Needle Gauge

mm
(Diameter in millimetres)

Wire diameter, Wire and Needle Gauge

mm
(millimeter)

Metric, Historical Lengths

mm
(millimeter)

Metric, Distance and Length

mm²
(IEC 60228:2004 Standard Wire Cross-Section)

Wire Gauges, Wire and Needle Gauge

mm²
(GOST 22483-2012 Standard Wire Cross-Section)

Wire Gauges, Wire and Needle Gauge

mm²
(Section area in square millimetres)

Wire section area, Wire and Needle Gauge

mm²
(square millimeter)

Metric, Historical Units of Area

mm³
(cubic millimeter)

Metric, Historical Units of Capacity

mm³
(cubic millimeter)

Metric, Capacity and volume

MMBTU
(million BTU)

British and American, Energy and Work

mmfbm, mmbdft, mmbf
(million board-feet)

Lumber measure, Capacity and volume

mm/s²
(millimeter per second squared)

Metric, Acceleration

MN/m²
(meganewton per square meter)

Metric, Stress and Pressure

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Old Portuguese Dry Measure, Historical Units of Capacity

Moldovan Leu
(MDL)

European Currencies, Currency

Mondopoint, Shoe Size Conversion

Mongolian Tugrik
(MNT)

Asian Currencies, Currency

Japanese, Mass and weight

Moroccan Dirham
(MAD)

African Curriencies, Currency

Illuminance examples, Illuminance

Old Spanish Liquid Measure, Historical Units of Capacity

Mozambican Metical
(MZN)

African Curriencies, Currency

Japanese, Distance and Length

MPa
(megapascal)

Metric, Stress and Pressure

mpg
(mile per British gallon)

British system, Fuel economy

mpg
(miles per gallon)

U.S. system, Fuel economy

m/s²
(meter per second squared)

Metric, Acceleration

Mtce
(megatonne of coal equivalent)

Coal Energy Equivalent, Energy and Work

Mtoe
(megatonne of oil equivalent)

Oil Energy Equivalent, Energy and Work

Chinese units of 1915, Area

Chinese units of 1930, Area

Myanma Kyat
(MMK)

Asian Currencies, Currency

Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity

## N

n
(nano)

Metric Prefixes, Franctions and Percent

N
(newton (on Earth surface))

Metric, Mass and weight

British Imperial Measure before 1963, Distance and Length

Baha'i Faith Units, Historical weights

Namibian Dollar
(NAD)

African Curriencies, Currency

nano
(n)

Metric Prefixes, Franctions and Percent

nanometer
(nm)

Metric, Distance and Length

nanosecond
(ns)

Common units, Time

Acute radiation syndrome, Radiation

nautical league
(naut.leag)

International Nautical Measure, Distance and Length

nautical mile
(naut.mi)

International Nautical Measure, Distance and Length

Nautical, Circular measure

naut.leag
(nautical league)

International Nautical Measure, Distance and Length

naut.mi
(nautical mile)

International Nautical Measure, Distance and Length

Ancient Egypt, Historical Lengths

N/cm²
(newton per square centimeter)

Metric, Stress and Pressure

Nepalese Rupee
(NPR)

Asian Currencies, Currency

Quantity Units, Franctions and Percent

Currencies of the Caribbean, Currency

New Taiwan Dollar
(TWD)

Asian Currencies, Currency

newton centimeter
(Ncm)

Metric, Torque

newton meter
(Nm)

Metric, Torque

Metric, Mass and weight

newton per square centimeter
(N/cm²)

Metric, Stress and Pressure

newton per square meter
(N/m²)

Metric, Stress and Pressure

newton per square millimeter
(N/mm²)

Metric, Stress and Pressure

New Zealand Dollar
(NZD)

Currencies of Australia and Oceania, Currency

Thai units, Area

Nicaraguan Cordoba
(NIO)

Central American Currencies, Currency

Nigerian Naira
(NGN)

African Curriencies, Currency

Illuminance examples, Illuminance

Illuminance examples, Illuminance

Thai units, Distance and Length

nit
(nt)

Other units, Illuminance

nm
(nanometer)

Metric, Distance and Length

N/m²
(newton per square meter)

Metric, Stress and Pressure

N/mm²
(newton per square millimeter)

Metric, Stress and Pressure

Illuminance examples, Illuminance

Illuminance examples, Illuminance

Natural Gas Energy Equivalent, Energy and Work

Ring Sizes in the United States, Canada and Mexico, Ring size

North Korean Won
(KPW)

Asian Currencies, Currency

Norwegian Krone
(NOK)

European Currencies, Currency

Other units, Illuminance

nt
(nit)

Other units, Illuminance

## O

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Old Spanish, Historical weights

Old Spanish Dry Measure, Historical Units of Capacity

Common Radix Numerals, Roman numbers, Hex, Octal and more

Number of Performers, Franctions and Percent

Old Portuguese Dry Measure, Historical Units of Capacity

Old Portuguese, Historical weights

Old Brazilian Ring Sizes, Ring size

Historical Units Still In Use Today, Area

Knitting Needle and Crochet Hook Sizes, Wire and Needle Gauge

Omani Rial
(OMR)

Middle East Currencies, Currency

Old Portuguese, Historical weights

one eights or .125
(1/8)

Fractions, Franctions and Percent

one ninth or .(1)
(1/9)

Fractions, Franctions and Percent

one seventh or .142857
(1/7)

Fractions, Franctions and Percent

one sixteenth or .0625
(1/16)

Fractions, Franctions and Percent

one sixth or .1(6)
(1/6)

Fractions, Franctions and Percent

one tenth or .1
(1/10)

Fractions, Franctions and Percent

one third or .(3)
(1/3)

Fractions, Franctions and Percent

one thirty-second or .03125
(1/32)

Fractions, Franctions and Percent

Old Spanish, Historical weights

Ancient Greek, Historical Lengths

Old Swedish, Historical weights

osi, oz/in²
(ounce per square inch)

British and U.S. (Imperial system), Stress and Pressure

ounce
(oz)

Avoirdupois (U.S.), Historical weights

ounce
(℥)

Apothecaries, Mass and weight

ounce
(ozt)

Troy, Mass and weight

ounce
(oz)

Avoirdupois (U.S. / British), Mass and weight

ounce-force
(ozf)

English Engineering and British Gravitational Units, Force

ounce-force inch
(ozf.in)

British and U.S., Torque

British and U.S., Density

ounce per cubic foot
(oz/ft³)

British and U.S., Density

ounce per cubic inch
(oz/in³)

British and U.S., Density

ounce per cubic yard
(oz/yd³)

British and U.S., Density

ounce per day
(oz/day)

U.S. and British Imperial, Flow rate by mass

ounce per hour
(oz/hour)

U.S. and British Imperial, Flow rate by mass

ounce per minute
(oz/min)

U.S. and British Imperial, Flow rate by mass

ounce per second
(oz/s)

U.S. and British Imperial, Flow rate by mass

British and U.S. (Imperial system), Stress and Pressure

ounce per square inch
(osi, oz/in²)

British and U.S. (Imperial system), Stress and Pressure

British and U.S., Density

ounce per U.S. gallon
(oz/gal)

British and U.S., Density

ounce per year
(oz/year)

U.S. and British Imperial, Flow rate by mass

Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity

Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity

oz
(fluid ounce)

U.S. Measure, Historical Units of Capacity

oz
(ounce)

Avoirdupois (U.S.), Historical weights

oz
(fluid ounce)

British Imperial Liquid And Dry, Capacity and volume

oz
(ounce)

Avoirdupois (U.S. / British), Mass and weight

oz/day
(ounce per day)

U.S. and British Imperial, Flow rate by mass

oz/hour
(ounce per hour)

U.S. and British Imperial, Flow rate by mass

oz/min
(ounce per minute)

U.S. and British Imperial, Flow rate by mass

oz/s
(ounce per second)

U.S. and British Imperial, Flow rate by mass

ozt
(ounce)

Troy, Mass and weight

oz/year
(ounce per year)

U.S. and British Imperial, Flow rate by mass

## P

p
(pico)

Metric Prefixes, Franctions and Percent

P
(peta)

Metric Prefixes, Franctions and Percent

Pa
(pascal)

Metric, Stress and Pressure

British Imperial Measure before 1963, Distance and Length

Quantity Units, Franctions and Percent

Pakistani Rupee
(PKR)

Asian Currencies, Currency

Ancient Greek, Historical Lengths

Palladium (troy ounce)
(XPD)

Other Currencies and More, Currency

palm
(plm)

British Imperial Measure before 1963, Distance and Length

Ancient Roman, Historical Lengths

Old Spanish, Historical Lengths

Old Portuguese, Historical Lengths

Old Portuguese, Historical Units of Area

Ancient Roman, Historical Lengths

Ancient Roman, Historical Lengths

Ship tonnage measurements, Capacity and volume

Panamanian Balboa
(PAB)

Central American Currencies, Currency

Old Spanish Liquid Measure, Historical Units of Capacity

Papua New Guinean Kina
(PGK)

Currencies of Australia and Oceania, Currency

Paraguayan Guarani
(PYG)

South American Currencies, Currency

Indian units (Akbar system), Mass and weight

Ancient Greek, Historical Lengths

European footwear unit, Distance and Length

parsec
(pc)

Astronomical, Distance and Length

parts per billion
(ppb)

Percentages and Parts, Franctions and Percent

parts per million
(ppm)

Percentages and Parts, Franctions and Percent

pascal
(Pa)

Metric, Stress and Pressure

Old Spanish, Historical Lengths

Old Portuguese, Historical Lengths

Ancient Roman, Historical Lengths

Pbit [Pibit]
(petabit [pebibit])

Data Storage and Transmission, Computer storage

Pb [PiB]
(petabyte [pebibyte])

Data Storage and Transmission, Computer storage

pc
(parsec)

Astronomical, Distance and Length

pc³
(cubic parsec)

Astronomical, Capacity and volume

Old Portuguese, Historical Lengths

Ancient Greek, Historical Lengths

peck
(pk)

British Imperial Liquid And Dry, Capacity and volume

peck
(pk)

U.S. Dry Measure, Capacity and volume

Ancient Egypt, Historical Lengths

Ancient Egypt, Historical Lengths

pennyweight
(dwt)

Troy, Mass and weight

percent
(%)

Percentages and Parts, Franctions and Percent

British Imperial Liquid And Dry, Capacity and volume

The American System (US Customary Units) and British Imperial Measures, Distance and Length

Old French, Historical Lengths

permille
(‰)

Percentages and Parts, Franctions and Percent

Ancient Roman, Historical Lengths

Peruvian Sol
(PEN)

South American Currencies, Currency

Ancient Roman, Historical Lengths

Ancient Roman, Historical Lengths

peta
(P)

Metric Prefixes, Franctions and Percent

petabit [pebibit]
(Pbit [Pibit])

Data Storage and Transmission, Computer storage

petabyte [pebibyte]
(Pb [PiB])

Data Storage and Transmission, Computer storage

Old German (Prussian), Historical weights

Old Austrian, Historical weights

Old German (Prussian), Historical weights

ph
(phot)

Centimeter-Gram-Second System (CGS), Illuminance

Philippine Peso
(PHP)

Asian Currencies, Currency

phot
(ph)

Centimeter-Gram-Second System (CGS), Illuminance

physical atmosphere
(atm)

Atmosphere, Stress and Pressure

Typographical (British and U.S. - ATA system), Distance and Length

Typographical (British and U.S. - ATA system), Distance and Length

pico
(p)

Metric Prefixes, Franctions and Percent

picosecond
(ps)

Common units, Time

Hong Kong, Mass and weight

Old Spanish, Historical Lengths

Old Spanish, Historical Units of Area

Old French, Historical Lengths

Biblical, Historical weights

English brewery cask units, Capacity and volume

pint
(pt)

British Imperial Liquid And Dry, Capacity and volume

pint
(pt)

Apothecaries, Capacity and volume

pint
(pt)

U.S. Dry Measure, Capacity and volume

pint
(pt)

U.S. Liquid Measure, Capacity and volume

pint (dry)
(pt)

U.S. Measure, Historical Units of Capacity

pint (liquid)
(pt)

U.S. Measure, Historical Units of Capacity

Old Portuguese Liquid Measure, Historical Units of Capacity

pixel
(px)

Typographical (British and U.S. - ATA system), Distance and Length

pk
(peck)

British Imperial Liquid And Dry, Capacity and volume

pk
(peck)

U.S. Dry Measure, Capacity and volume

Planck area
(L²)

Natural units, Area

Planck density
(L⁻³M)

Natural units, Density

Planck energy
(L²MT⁻²)

Natural units, Energy and Work

Planck force
(LMT⁻²)

Natural units, Force

Planck length
(L)

Natural units, Distance and Length

Planck mass
(M)

Natural units, Mass and weight

Planck power
(L²MT⁻³)

Natural units, Power

Planck pressure
(L⁻¹MT⁻²)

Natural units, Stress and Pressure

Temperature increment conversion, Temperature increment

Temperature scale conversion, Temperature

Planck time
(T)

Natural units, Time

Planck volume
(L³)

Natural units, Capacity and volume

Platinum (troy ounce)
(XPT)

Other Currencies and More, Currency

Ancient Greek, Historical Units of Area

Ancient Greek, Historical Lengths

plm
(palm)

British Imperial Measure before 1963, Distance and Length

point
(pt)

Typographical (Europe - Didot system), Distance and Length

point
(pt)

Typographical (British and U.S. - ATA system), Distance and Length

point [PostScript]
(pt)

Typographical (British and U.S. - ATA system), Distance and Length

British Imperial Measure before 1963, Distance and Length

The American System (US Customary Units) and British Imperial Measures, Distance and Length

Old Portuguese, Historical Lengths

Old Portuguese, Historical Units of Area

Polish Zloty
(PLN)

European Currencies, Currency

Ancient Roman, Historical Lengths

Old Portuguese, Historical Lengths

Old Russian, Historical weights

British Imperial Measure before 1963, Distance and Length

Old Portuguese Liquid Measure, Historical Units of Capacity

Old French, Historical Lengths

Old Russian, Historical weights

pound
(lb)

Avoirdupois (U.S.), Historical weights

pound
(℔, ″)

Apothecaries, Mass and weight

Troy, Mass and weight

pound
(lb)

Avoirdupois (U.S. / British), Mass and weight

pound-force
(lbf)

English Engineering and British Gravitational Units, Force

pound-force foot
(lbsf.ft)

British and U.S., Torque

pound-force inch
(lbsf.in)

British and U.S., Torque

Liquefied Natural Gas (LNG) Energy Equivalent, Energy and Work

Liquefied Natural Gas (LNG) Energy Equivalent, Energy and Work

Liquefied Petrolium Gas (LPG) Energy Equivalent, Energy and Work

Liquefied Petrolium Gas (LPG) Energy Equivalent, Energy and Work

British and U.S., Density

pound per cubic foot
(lb/ft³)

British and U.S., Density

pound per cubic inch
(lb/in³)

British and U.S., Density

pound per cubic yard
(lb/yd³)

British and U.S., Density

pound per day
(lb/day)

U.S. and British Imperial, Flow rate by mass

pound per hour
(lb/hour)

U.S. and British Imperial, Flow rate by mass

pound per minute
(lb/min)

U.S. and British Imperial, Flow rate by mass

pound per second
(lb/s)

U.S. and British Imperial, Flow rate by mass

British and U.S. (Imperial system), Stress and Pressure

pound per square inch
(psi)

British and U.S. (Imperial system), Stress and Pressure

British and U.S., Density

pound per U.S. gallon
(lb/gal)

British and U.S., Density

pound per year
(lb/year)

U.S. and British Imperial, Flow rate by mass

Ancient Greek, Historical Lengths

Ancient Greek, Historical Units of Area

Indian units (Akbar system), Mass and weight

ppb
(parts per billion)

Percentages and Parts, Franctions and Percent

ppm
(parts per million)

Percentages and Parts, Franctions and Percent

psi
(pound per square inch)

British and U.S. (Imperial system), Stress and Pressure

pt
(pint (liquid))

U.S. Measure, Historical Units of Capacity

pt
(pint (dry))

U.S. Measure, Historical Units of Capacity

pt
(pint)

British Imperial Liquid And Dry, Capacity and volume

pt
(pint)

Apothecaries, Capacity and volume

pt
(pint)

U.S. Dry Measure, Capacity and volume

pt
(pint)

U.S. Liquid Measure, Capacity and volume

pt
(point)

Typographical (Europe - Didot system), Distance and Length

pt
(point)

Typographical (British and U.S. - ATA system), Distance and Length

pt
(point [PostScript])

Typographical (British and U.S. - ATA system), Distance and Length

Old Spanish, Historical Lengths

English wine cask units, Capacity and volume

Old Austrian, Historical Lengths

Old Spanish, Historical Lengths

Acute radiation syndrome, Radiation

px
(pixel)

Typographical (British and U.S. - ATA system), Distance and Length

Old Russian, Historical Lengths

Ancient Greek, Historical Lengths

Ancient Greek, Historical Lengths

## Q

Qatari Rial
(QAR)

Middle East Currencies, Currency

Chinese units between 1930 and 1959, Mass and weight

Chinese units since 1959, Mass and weight

Chinese units of 1915 before 1930, Mass and weight

Chinese units of 1915, Area

Chinese units of 1930, Area

qt
(quart)

British Imperial Liquid And Dry, Capacity and volume

qt
(quart)

U.S. Dry Measure, Capacity and volume

qt
(quart)

U.S. Liquid Measure, Capacity and volume

British and American, Energy and Work

Ancient Roman, Historical weights

quart
(qt)

British Imperial Liquid And Dry, Capacity and volume

quart
(qt)

U.S. Dry Measure, Capacity and volume

quart
(qt)

U.S. Liquid Measure, Capacity and volume

Old Portuguese Dry Measure, Historical Units of Capacity

Old Portuguese, Historical weights

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Number of Performers, Franctions and Percent

Old Portuguese Liquid Measure, Historical Units of Capacity

Old Portuguese Liquid Measure, Historical Units of Capacity

Old Portuguese Dry Measure, Historical Units of Capacity

quart, one forth or .25
(1/4)

Fractions, Franctions and Percent

Other Radix Numerals, Roman numbers, Hex, Octal and more

Old Austrian, Historical weights

Old German (Prussian), Historical weights

Other Radix Numerals, Roman numbers, Hex, Octal and more

Ancient Roman, Historical weights

Old German (Prussian), Historical weights

Old French, Historical weights

Old Portuguese, Historical weights

Old Spanish, Historical weights

Number of Performers, Franctions and Percent

## R

rack unit
(U)

Computer Equipment, Distance and Length

rad
(radian)

Common Units, Circular measure

radian
(rad)

Common Units, Circular measure

Radian, Angular velocity

Radian, Angular velocity

Radian, Angular velocity

Indian units (Akbar system), Mass and weight

US Surveyors' Measure, Distance and Length

US Surveyors' Measure, Distance and Length

Indian units (Akbar system), Mass and weight

rd
(rutherford)

Other units, Radioactivity

rd
(rod)

The American System (US Customary Units) and British Imperial Measures, Distance and Length

red shift
(z)

Astronomical, Distance and Length

Ship tonnage measurements, Capacity and volume

Ancient Egypt, Historical Lengths

Old Swedish, Historical Lengths

Old Swedish, Historical Lengths

Revolution, Angular velocity

Revolution, Angular velocity

Revolution, Angular velocity

Revolution, Angular velocity

Revolution, Angular velocity

Ring Sizes in Italy, Spain, Switzerland, the Netherlands, Brazil, India, Ring size

Ring Sizes in Russia, Ukraine, Belarus and Other ex-USSR Countries, Ring size

Japanese, Distance and Length

Japanese, Distance and Length

rod
(rd)

The American System (US Customary Units) and British Imperial Measures, Distance and Length

Romanian Leu
(RON)

European Currencies, Currency

Roman numerals, Roman numbers, Hex, Octal and more

Roman numerals, Roman numbers, Hex, Octal and more

British Imperial Measure before 1963, Distance and Length

Old French, Historical Units of Area

English wine cask units, Capacity and volume

Coal Energy Equivalent, Energy and Work

Russia and CIS (ex-USSR countries) Shoe Size, Shoe Size Conversion

Russian Ruble, ₽
(RUB)

Major World Currencies, Currency

Russia and CIS (ex-USSR countries) Shoe Size, Shoe Size Conversion

Artillery, Circular measure

Russia and CIS (ex-USSR countries) Shoe Size, Shoe Size Conversion

Old Austrian, Historical Lengths

Old German (Prussian), Historical Lengths

rutherford
(rd)

Other units, Radioactivity

Rwandan Franc
(RWF)

African Curriencies, Currency

## S

Saint Helena Pound
(SHP)

African Curriencies, Currency

Japanese, Capacity and volume

Ancient Roman, Historical Units of Area

Thai units, Mass and weight

Salvadoran Colón
(SVC)

Central American Currencies, Currency

Samoan Tala
(WST)

Currencies of Australia and Oceania, Currency

African Curriencies, Currency

African Curriencies, Currency

Thai units, Capacity and volume

Saudi Riyal
(SAR)

Middle East Currencies, Currency

Old Austrian, Historical weights

Old Russian, Historical Lengths

sb
(stilb)

Other units, Illuminance

scc
(cubic centimeter of atmosphere, standard cubic centimeter)

Common Units, Energy and Work

scf
(cubic foot of atmosphere, standard cubic foot)

British and American, Energy and Work

Old German (Prussian), Historical weights

Ancient Roman, Historical Lengths

Ancient Greek, Historical Lengths

Quantity Units, Franctions and Percent

scruple
(℈)

Apothecaries, Mass and weight

Ancient Roman, Historical weights

scy
(cubic yard of atmosphere, standard cubic yard)

British and American, Energy and Work

Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity

Nautical, Speed

second
(″)

Common Units, Circular measure

Data Transfer Time (older, 1024-based), Data transfer rate

Data Transfer Time (current, 1000-based), Data transfer rate

Data Transfer Time (older, 1024-based), Data transfer rate

Data Transfer Time (current, 1000-based), Data transfer rate

Car performance, Acceleration

Car performance, Acceleration

Car performance, Acceleration

Car performance, Acceleration

Pace (Various Sports), Speed

Pace (Various Sports), Speed

Pace (Various Sports), Speed

Pace (Various Sports), Speed

Pace (Various Sports), Speed

Wire section area, Wire and Needle Gauge

Wire section area, Wire and Needle Gauge

Wire section area, Wire and Needle Gauge

Wire section area, Wire and Needle Gauge

Wire section area, Wire and Needle Gauge

Wire section area, Wire and Needle Gauge

Thai units, Mass and weight

Old Portuguese Dry Measure, Historical Units of Capacity

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Ancient Roman, Historical weights

Ancient Roman, Historical weights

Thai units, Distance and Length

Number of Performers, Franctions and Percent

Ancient Roman, Historical weights

Indian units (Akbar system), Mass and weight

Serbian Dinar
(RSD)

European Currencies, Currency

Ancient Roman, Historical weights

Ancient Roman, Historical weights

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Common Units, Circular measure

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Number of Performers, Franctions and Percent

Ancient Roman, Historical weights

Seychellois Rupee
(SCR)

African Curriencies, Currency

British Imperial Measure before 1963, Distance and Length

British Imperial Measure before 1963, Distance and Length

Japanese, Capacity and volume

Japanese, Distance and Length

Chinese units of 1915, Capacity and volume

Chinese units of 1930, Capacity and volume

Biblical, Historical weights

Chinese units of 1915, Capacity and volume

Chinese units of 1930, Capacity and volume

Ancient Egypt, Historical Lengths

Old Russian Liquid Measure, Historical Units of Capacity

Quantity Units, Franctions and Percent

Avoirdupois (U.S. / British), Mass and weight

British and U.S., Torque

Avoirdupois (U.S.), Historical weights

Avoirdupois (U.S. / British), Mass and weight

U.S. and British Imperial, Flow rate by mass

U.S. and British Imperial, Flow rate by mass

U.S. and British Imperial, Flow rate by mass

U.S. and British Imperial, Flow rate by mass

U.S. and British Imperial, Flow rate by mass

Japanese, Capacity and volume

Old Russian Liquid Measure, Historical Units of Capacity

Thai units, Mass and weight

Ancient Roman, Historical weights

Sierra Leonean Leone
(SLL)

African Curriencies, Currency

Ancient Roman, Historical weights

Silver (troy ounce)
(XAG)

Other Currencies and More, Currency

Singapore Dollar
(SGD)

Asian Currencies, Currency

Chinese units of 1915, Distance and Length

Chinese units of 1930, Distance and Length

Chinese units between 1930 and 1959, Mass and weight

Chinese units since 1959, Mass and weight

Historical Units Still In Use Today, Area

Old Swedish, Historical weights

British Imperial Measure before 1963, Distance and Length

Old Swedish, Historical weights

Other units, Illuminance

slope percent
(%)

Slope (grade) units, Circular measure

slope permille
(‰)

Slope (grade) units, Circular measure

slug per cubic foot
(slug/ft³)

English Engineering and British Gravitational Units, Density

slug per cubic inch
(slug/in³)

English Engineering and British Gravitational Units, Density

slug per cubic yard
(slug/yd³)

English Engineering and British Gravitational Units, Density

Thai units, Distance and Length

Number of Performers, Franctions and Percent

Solomon Islands Dollar
(SBD)

Currencies of Australia and Oceania, Currency

Thai units, Mass and weight

Somali Shilling
(SOS)

African Curriencies, Currency

South African Rand
(ZAR)

African Curriencies, Currency

South Korean Won
(KRW)

Asian Currencies, Currency

South Sudanese Pound
(SSP)

African Curriencies, Currency

sp
(span)

British Imperial Measure before 1963, Distance and Length

Biblical, Historical Lengths

span
(sp)

British Imperial Measure before 1963, Distance and Length

The American System (US Customary Units) and British Imperial Measures, Distance and Length

Other Currencies and More, Currency

Speed constants and examples, Speed

Speed constants and examples, Speed

Ancient Greek, Historical Lengths

Ancient Roman, Historical Units of Area

Ancient Roman, Historical Units of Area

Old Russian, Historical Units of Area

square centimeter
(cm²)

Metric, Historical Units of Area

square centimeter
(cm²)

Metric, Area

square decimeter
(dm²)

Metric, Area

Ancient Roman, Historical Units of Area

Old Russian, Historical Units of Area

square foot
(ft²)

British (Imperial) And U.S. System, Historical Units of Area

square foot
(ft²)

British (Imperial) And U.S. System, Area

square inch
(in²)

British (Imperial) And U.S. System, Historical Units of Area

square inch
(in²)

British (Imperial) And U.S. System, Area

square kilometer
(km²)

Metric, Historical Units of Area

square kilometer
(km²)

Metric, Area

square meter
(m²)

Metric, Historical Units of Area

square meter
(m²)

Metric, Area

square mil
(th²)

British (Imperial) And U.S. System, Area

British (Imperial) And U.S. System, Historical Units of Area

British (Imperial) And U.S. System, Area

square millimeter
(mm²)

Metric, Historical Units of Area

square millimeter
(mm²)

Metric, Area

Ancient Roman, Historical Units of Area

Ancient Roman, Historical Units of Area

Old French, Historical Units of Area

Old French, Historical Units of Area

British (Imperial) And U.S. System, Area

Old French, Historical Units of Area

Historical Units Still In Use Today, Area

Historical Units Still In Use Today, Area

Historical Units Still In Use Today, Area

Historical Units Still In Use Today, Area

Historical Units Still In Use Today, Area

Old Russian, Historical Units of Area

square yard
(yd²)

British (Imperial) And U.S. System, Historical Units of Area

square yard
(yd²)

British (Imperial) And U.S. System, Area

Sri Lankan Rupee
(LKR)

Asian Currencies, Currency

st
(stone)

Avoirdupois (U.S. / British), Mass and weight

Ancient Greek, Historical Lengths

Ancient Greek, Historical Lengths

Ancient Greek, Historical Lengths

Ancient Roman, Historical Lengths

Old Austrian, Historical weights

Old German (Prussian), Historical weights

Free Fall Acceleration (Solar System), Acceleration

Natural Gas Energy Equivalent, Energy and Work

Old Swedish, Historical Lengths

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

Lumber measure, Capacity and volume

stilb
(sb)

Other units, Illuminance

stone
(st)

Avoirdupois (U.S. / British), Mass and weight

stone, pounds, and ounces
(X st Y lbs Z oz)

Avoirdupois (U.S. / British), Mass and weight

CNC Memory Capacity, Computer storage

CNC Memory Capacity, Computer storage

Historical Units Still In Use Today, Area

Wire Gauges, Wire and Needle Gauge

Sudanese Pound
(SDG)

African Curriencies, Currency

Japanese, Distance and Length

Surinamese Dollar
(SRD)

South American Currencies, Currency

Swazi Lilangeni
(SZL)

African Curriencies, Currency

Swedish Krona
(SEK)

European Currencies, Currency

Swiss Franc, Fr
(CHF)

Major World Currencies, Currency

Astronomical, Time

Astronomical, Time

Astronomical, Time

Syrian Pound
(SYP)

Middle East Currencies, Currency

Medical Needle and Catheter Gauges, Wire and Needle Gauge

## T

T
(tera)

Metric Prefixes, Franctions and Percent

Computer Connection Speed, Data transfer rate

Apothecaries, Capacity and volume

Cooking (Australian), Capacity and volume

Cooking (International), Capacity and volume

Cooking (U.S.), Capacity and volume

Hong Kong, Mass and weight

Hong Kong, Mass and weight

Tajikistani Somoni
(TJS)

Asian Currencies, Currency

Biblical, Historical weights

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

Decimal numbers, Roman numbers, Hex, Octal and more

Thai units, Mass and weight

Indian units (Akbar system), Mass and weight

Tanzanian Shilling
(TZS)

African Curriencies, Currency

Japanese, Area

Thai units, Area

Tbit [Tibit]
(terabit [tebibit])

Data Storage and Transmission, Computer storage

Tbps
(terabit per second)

Basic Units of Data Transfer Rate, Data transfer rate

TB/s
(terabyte per second)

Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate

Tb [TiB]
(terabyte [tebibyte])

Data Storage and Transmission, Computer storage

tce
(tonne of coal equivalent)

Coal Energy Equivalent, Energy and Work

t/day
(tonne per day)

Metric, Flow rate by mass

Apothecaries, Capacity and volume

Apothecaries, Capacity and volume

Cooking (Australian), Capacity and volume

Cooking (International), Capacity and volume

Cooking (U.S.), Capacity and volume

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

tebibyte per second
(TiB/s)

Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate

Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate

Atmosphere, Stress and Pressure

tera
(T)

Metric Prefixes, Franctions and Percent

terabit per second
(Tbps)

Basic Units of Data Transfer Rate, Data transfer rate

terabit [tebibit]
(Tbit [Tibit])

Data Storage and Transmission, Computer storage

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

terabyte per second
(TB/s)

Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate

Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate

terabyte [tebibyte]
(Tb [TiB])

Data Storage and Transmission, Computer storage

Other Radix Numerals, Roman numbers, Hex, Octal and more

Ancient Roman, Historical weights

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

th
(thou)

British Imperial Measure before 1963, Distance and Length

Decimal numbers, Roman numbers, Hex, Octal and more

Thai units, Capacity and volume

Thai units, Capacity and volume

British and American, Energy and Work

thou
(th)

British Imperial Measure before 1963, Distance and Length

t/hour
(tonne per hour)

Metric, Flow rate by mass

Quantity Units, Franctions and Percent

thousand board-feet
(mfbm, mbdft, mbf)

Lumber measure, Capacity and volume

thousand of circular mils
(kcmil, MCM)

Units for Measuring Wire Gauges, Area

Natural Gas Energy Equivalent, Energy and Work

Natural Gas Energy Equivalent, Energy and Work

British and U.S. (Imperial system), Stress and Pressure

TiB/s
(tebibyte per second)

Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate

English wine cask units, Capacity and volume

time per 500 meters (500m split in rowing)
(HH:MM:SS)

Pace (Various Sports), Speed

time per kilometer
(HH:MM:SS)

Pace (Various Sports), Speed

time per mile
(HH:MM:SS)

Pace (Various Sports), Speed

tithe, one fifth or .2
(1/5)

Fractions, Franctions and Percent

t/min
(tonne per minute)

Metric, Flow rate by mass

toe
(tonne of oil equivalent)

Oil Energy Equivalent, Energy and Work

Old Portuguese, Historical Lengths

Old French, Historical Lengths

Indian units (Akbar system), Mass and weight

Old Portuguese Liquid Measure, Historical Units of Capacity

Old Portuguese, Historical weights

Old Spanish, Historical weights

Tongan Paʻanga
(TOP)

Currencies of Australia and Oceania, Currency

Ship tonnage measurements, Capacity and volume

Metric, Historical weights

Metric, Mass and weight

Gravitational Metric System, Force

Metric, Torque

Metric, Torque

TNT Energy Equivalent, Energy and Work

tonne of coal equivalent
(tce)

Coal Energy Equivalent, Energy and Work

tonne of oil equivalent
(toe)

Oil Energy Equivalent, Energy and Work

Coal Energy Equivalent, Energy and Work

tonne per cubic meter
(t/m³)

Metric System, Density

tonne per day
(t/day)

Metric, Flow rate by mass

tonne per hour
(t/hour)

Metric, Flow rate by mass

tonne per minute
(t/min)

Metric, Flow rate by mass

tonne per second
(t/s)

Metric, Flow rate by mass

tonne per year
(t/year)

Metric, Flow rate by mass

TNT Energy Equivalent, Energy and Work

British and U.S. (Imperial system), Stress and Pressure

British and U.S. (Imperial system), Stress and Pressure

Japanese, Capacity and volume

Decimal numbers, Roman numbers, Hex, Octal and more

Ancient Roman, Historical weights

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

South American Currencies, Currency

Number of Performers, Franctions and Percent

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

Ancient Greek (Aeginetic standard), Historical weights

Ancient Greek (Attic/Eubolic standard), Historical weights

Astronomical, Time

t/s
(tonne per second)

Metric, Flow rate by mass

Hong Kong units, Distance and Length

Old Swedish, Historical Lengths

Old Swedish, Historical Lengths

English wine cask units, Capacity and volume

Tunisian Dinar
(TND)

African Curriencies, Currency

Turkish Lira
(TRY)

Middle East Currencies, Currency

Historical Units Still In Use Today, Area

Turkmenistani Manat
(TMT)

Asian Currencies, Currency

Old Swedish, Historical Lengths

Typographical (British and U.S. - ATA system), Distance and Length

t/year
(tonne per year)

Metric, Flow rate by mass

## U

U
(rack unit)

Computer Equipment, Distance and Length

Ugandan Shilling
(UGX)

African Curriencies, Currency

Ancient Roman, Historical Units of Area

Knitting Needle and Crochet Hook Sizes, Wire and Needle Gauge

Ukrainian Hryvnia
(UAH)

European Currencies, Currency

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Ancient Roman, Historical Lengths

Ancient Roman, Historical weights

Other Radix Numerals, Roman numbers, Hex, Octal and more

Middle East Currencies, Currency

United States Dollar, $
(USD)

Major World Currencies, Currency

unit, point
(1)

Quantity Units, Franctions and Percent

Old Austrian, Historical weights

Old German (Prussian), Historical weights

Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity

Uruguayan Peso
(UYU)

South American Currencies, Currency

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

U.S. brewery cask units, Capacity and volume

U.S. brewery cask units, Capacity and volume

U.S. brewery cask units, Capacity and volume

U.S. brewery cask units, Capacity and volume

US Nautical Measure, Distance and Length

Knitting Needle and Crochet Hook Sizes, Wire and Needle Gauge

US fathom
(fath)

US Nautical Measure, Distance and Length

U.S. gallon per day
(gal/day)

U.S. and British Imperial, Flow rate by volume

U.S. gallon per hour
(gph)

U.S. and British Imperial, Flow rate by volume

U.S. gallon per minute
(gpm)

U.S. and British Imperial, Flow rate by volume

U.S. gallon per second
(gps)

U.S. and British Imperial, Flow rate by volume

U.S. gallon per year
(gal/year)

U.S. and British Imperial, Flow rate by volume

US Nautical Measure, Distance and Length

Knitting Needle and Crochet Hook Sizes, Wire and Needle Gauge

U.S. refrigeration ton
(USRT)

British and American, Power

Uzbekistan Som
(UZS)

Asian Currencies, Currency

## V

Computer Connection Speed, Data transfer rate

Vanuatu Vatu
(VUV)

Currencies of Australia and Oceania, Currency

Old Portuguese, Historical Lengths

Old Spanish, Historical Lengths

Old Spanish, Historical Units of Area

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Spanish Customary Units Still In Use Today, Distance and Length

Old Portuguese, Historical Units of Area

Old Russian Liquid Measure, Historical Units of Capacity

Old Russian Dry Measure, Historical Units of Capacity

South American Currencies, Currency

Old Russian, Historical Lengths

Old Russian, Historical Lengths

Old Austrian, Historical weights

Vietnamese Dong
(VND)

Asian Currencies, Currency

Old Russian Liquid Measure, Historical Units of Capacity

Old Russian Liquid Measure, Historical Units of Capacity

volt-ampere
(VA)

International System (SI), Power

## W

watt hour
(W*h)

Common Units, Energy and Work

watt second
(W*s)

Common Units, Energy and Work

Thai units, Distance and Length

W*h
(watt hour)

Common Units, Energy and Work

Ring Sizes in the United Kingdom, Ireland, Australia, New Zealand, and South Africa (Wheat Sheaf), Ring size

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Computer Connection Speed, Data transfer rate

Apothecaries, Capacity and volume

W*s
(watt second)

Common Units, Energy and Work

## X

Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity

Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity

X st Y lbs Z oz
(stone, pounds, and ounces)

Avoirdupois (U.S. / British), Mass and weight

x'y"
(feet and inches)

The American System (US Customary Units) and British Imperial Measures, Distance and Length

## Y

y
(yocto)

Metric Prefixes, Franctions and Percent

Y
(yotta)

Metric Prefixes, Franctions and Percent

yard
(yd)

The American System of Measures (US Customary Units), Historical Lengths

yard
(yd)

British Imperial Measure before 1963, Distance and Length

yard
(yd)

The American System (US Customary Units) and British Imperial Measures, Distance and Length

yd
(yard)

The American System of Measures (US Customary Units), Historical Lengths

yd
(yard)

British Imperial Measure before 1963, Distance and Length

yd
(yard)

The American System (US Customary Units) and British Imperial Measures, Distance and Length

yd²
(square yard)

British (Imperial) And U.S. System, Historical Units of Area

yd³
(cubic yard)

British and U.S. derivatives of length units, Capacity and volume

Yemeni Rial
(YER)

Middle East Currencies, Currency

Chinese units of 1915, Distance and Length

Chinese units of 1930, Distance and Length

Thai units, Capacity and volume

yocto
(y)

Metric Prefixes, Franctions and Percent

yotta
(Y)

Metric Prefixes, Franctions and Percent

Thai units, Distance and Length

Old Spanish, Historical Units of Area

## Z

z
(zepto)

Metric Prefixes, Franctions and Percent

z
(red shift)

Astronomical, Distance and Length

Z
(zetta)

Metric Prefixes, Franctions and Percent

Zambian Kwacha
(ZMW)

African Curriencies, Currency

Old Austrian, Historical weights

Old German (Prussian), Historical weights

zepto
(z)

Metric Prefixes, Franctions and Percent

zetta
(Z)

Metric Prefixes, Franctions and Percent

Chinese units of 1915, Distance and Length

Chinese units of 1930, Distance and Length

Zimbabwean Dollar
(ZWL)

African Curriencies, Currency

Old Austrian, Historical Lengths

Old German (Prussian), Historical Lengths

Old Russian, Historical weights