Table 1 - SI Base Unit Symbols | |||||||||||||||||||
Unit Symbol | Unit Name
A
| ampere
| K
| kelvin
| cd
| candela
| kg
| kilogram
| m
| meter
| mol
| mole
| rad
| radian
| s
| second
| sr
| steradian
| |
Table 2 - API-SI Base Unit Symbols - Non-Currency | |||||||||
Unit Symbol | Unit Name
dAPI
| api gravity
| dB
| decibel
| gAPI
| api gamma ray
| nAPI
| api neutron
| |
Table 3 - API-SI Currency Base Unit Symbols | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Unit Symbol | Unit Name
ADP
| Andorran peseta
| AED
| UAE dirham
| AFA
| Afghanistan afghani
| ALL
| Albanian lek
| ANG
| Netherlands Antillian guilder
| AOK
| Angolan kwanza
| ARA
| Argentinian austral
| ATS
| Austrian schilling
| AUD
| Australian dollar
| AWG
| Aruban guilder
| BBD
| Barbados dollar
| BDT
| Bangladesh taka
| BEF
| Belgian franc
| BGL
| Bulgarian lev
| BHD
| Bahraini dinar
| BIF
| Burundi franc
| BMD
| Burmuda dollar
| BND
| Brunei dollar
| BOB
| Bolivian boliviano
| BRC
| Brazilian cruzado
| BSD
| Bahamian dollar
| BTN
| Bhutan ngultrum
| BUK
| Burmese kyat
| BWP
| Botswanian pula
| BZD
| Belize dollar
| CAD
| Canadian dollar
| CHF
| Swiss franc
| CLP
| Chilean peso
| CNY
| Chinese yuan renminbi
| COP
| Colombian peso
| CRC
| Costa Rican colon
| CSK
| Czechoslovakian koruna
| CUP
| Cuban peso
| CVE
| Cape Verde escudo
| CYP
| Cyprus pound
| DDM
| Mark der DDR
| DEM
| Deutsche mark
| DJF
| Djibouti franc
| DKK
| Danish krone
| DOP
| Dominican peso
| DZD
| Algerian dinar
| ECS
| Ecuadorian sucre
| EGP
| Egyptian pound
| ESP
| Spanish peseta
| ETB
| Ethiopian birr
| FIM
| Finnish markka
| FJD
| Fiji dollar
| FKP
| Falkland Islands pound
| FRF
| French franc
| GBP
| British pound sterling
| GHC
| Ghanian cedi
| GIP
| Gibraltar pound
| GMD
| Gambian dalasi
| GNF
| Guinea franc
| GRD
| Grecian drachma
| GTQ
| Guatemalan quetzal
| GWP
| Guinea-Bissau peso
| GYD
| Guyana dollar
| HKD
| Hong Kong dollar
| HNL
| Honduran lempira
| HTG
| Haitian gourde
| HUF
| Hungarian forint
| IDR
| Indonesian rupiah
| IEP
| Irish pound
| ILS
| Israeli shekel
| INR
| Indian rupee
| IQD
| Iraqi dinar
| IRR
| Iranian rial
| ISK
| Iceland krona
| ITL
| Italian lira
| JMD
| Jamaican dollar
| JOD
| Jordanian dinar
| JPY
| Japanese yen
| KES
| Kenyan shilling
| KHR
| Kampuchean riel
| KMF
| Comoro franc
| KPW
| North Korean won
| KRW
| South Korean won
| KWD
| Kuwaiti dinar
| KYD
| Cayman Islands dollar
| LAK
| Lao kip
| LBP
| Lebanese pound
| LKR
| Sri Lanka rupee
| LRD
| Liberian dollar
| LSL
| Lesothoan loti
| LUF
| Luxembourg franc
| LYD
| Libyan dinar
| MAD
| Moroccan dirham
| MGF
| Malagasy franc
| MNT
| Mongolian tugrik
| MOP
| Macauan pataca
| MRO
| Mauritanian ouguiya
| MTL
| Maltese lira
| MUR
| Mauritius rupee
| MVR
| Maldives rufiyaa
| MWK
| Malawian kwacha
| MXP
| Mexican peso
| MYR
| Malaysian ringgit
| MZM
| Mozambique metical
| NGN
| Nigerian naira
| NIC
| Nicaraguan cordoba
| NLG
| Netherlands guilder
| NOK
| Norwegian krone
| NPR
| Nepalese rupee
| NZD
| New Zealand dollar
| OMR
| Omani rail
| PAB
| Panamanian balboa
| PEI
| Peruvian inti
| PGK
| Papua New Guinean kina
| PHP
| Philippine peso
| PKR
| Pakistan rupee
| PLZ
| Polish zloty
| PTE
| Portuguese escudo
| PYG
| Paraguayan guarani
| QAR
| Qatari rial
| ROL
| Romainian leu
| RWF
| Rwanda franc
| SAR
| Saudi riyal
| SBD
| Solomon Islands dollar
| SCR
| Seychelles rupee
| SDP
| Sudanese pound
| SEK
| Swedish krone
| SGD
| Singapore dollar
| SHP
| St. Helena pound
| SLL
| Sierra Leone leone
| SOS
| Somali shilling
| SRG
| Suriname guilder
| STD
| Sao Tome and Principe dobra
| SUR
| CIS rouble
| SVC
| El Salvador colon
| SYP
| Syrian pound
| SZL
| Swaziland lilangeni
| THB
| Thai baht
| TND
| Tunisian dollar
| TOP
| Tongan pa'anga
| TPE
| Timor escudo
| TRL
| Turkish lira
| TTD
| Trinidad and Tobago dollar
| TWD
| New Taiwan dollar
| TZS
| Tanzanian shilling
| UGS
| Uganda shilling
| USD
| US dollar
| UYP
| Uruguayan peso
| VEB
| Venezuelan bolivar
| VND
| Vietnamese dong
| VUV
| Vanuatuan vatu
| WST
| Western Samoan tala
| XAF
| CFA franc, Central Africa
| XCD
| East Caribbean dollar
| XDR
| SDR, international monetary fund
| XEU
| European currency unit
| XOF
| CFA franc, West Africa
| XPF
| CFP franc
| YDD
| Yemeni dinar
| YER
| Yemeni rial
| YUD
| new Yugoslavian dinar
| ZAR
| South African rand
| ZMK
| Zambian kwacha
| ZRZ
| Zaire zaire
| ZWD
| Zimbabwe dollar
| |
Table 4 - API-SI Derived Unit Symbols | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Unit Symbol | Unit Expression | Unit Name
%
| 0.01
| percent
| B
| 10 dB
| bel
| Bq
| 1/s
| becquerel
| Btu
| 1055.05585262 J
| British thermal unit (international)
| C
| A.s
| coulomb
| Ci
| 37 GBq
| curie
| D
| 0.9869233 um2
| darcy
| EJ
| 1E18 J
| exajoule
| F
| C/V
| farad
| GBq
| 1E9 Bq
| gigabecquerel
| GHz
| 1E9 Hz
| gigahertz
| GJ
| 1E9 J
| gigajoule
| GPa
| 1E9 Pa
| gigapascal
| GS
| 1E9 S
| gigasiemens
| GW
| 1E9 W
| gigawatt
| Gal
| cm/s2
| galileo
| GeV
| 1E9 eV
| gigaelectronvolt
| Gohm
| 1E9 ohm
| gigaohm
| Grad
| 1E9 rad
| gigaradian
| Gy
| J/kg
| gray
| H
| Wb/A
| henry
| Hz
| 1/s
| hertz
| J
| N.m
| joule
| L
| dm3
| liter
| MA
| 1E6 A
| megampere
| MBq
| 1E6 Bq
| megabecquerel
| MHz
| 1E6 Hz
| megahertz
| MJ
| 1E6 J
| megajoule
| MN
| 1E6 N
| meganewton
| MPa
| 1E6 Pa
| megapascal
| MV
| 1E6 V
| megavolt
| MW
| 1E6 W
| megawatt
| Ma
| 1E6 a
| million years
| MeV
| 1E6 eV
| megaelectronvolt
| Mg
| 1000 kg
| megagram
| Mm
| 1E6 m
| megameter
| Mohm
| 1E6 ohm
| megohm
| Mpsi
| 1E6 psi
| million pounds per square inch
| Mrad
| 1E6 rad
| megaradian
| N
| kg.m/s2
| newton
| Oe
| 79.57747 A/m
| oersted
| P
| 0.1 Pa.s
| poise
| Pa
| N/m2
| pascal
| S
| A/V
| siemens
| Sv
| J/kg
| sievert
| T
| Wb/m2
| tesla
| TBq
| 1E12 Bq
| terabecquerel
| TJ
| 1E12 J
| terajoule
| TW
| 1E12 W
| terawatt
| TeV
| 1E12 eV
| teraelectonvolt
| Tohm
| 1E12 ohm
| teraohm
| V
| W/A
| volt
| W
| J/s
| watt
| Wb
| V.s
| weber
| a
| 3.155815E7 s
| annum (sidereal year)
| aJ
| 1E-18 J
| attojoule
| acre
| 627264E5/15499969 m2
| acre
| ag
| 1E-18 g
| attogram
| atm
| 101.325 kPa
| standard atmosphere
| b
| 1E-28 m2
| barn
| bar
| 100 kPa
| bar
| bbl
| 42 galUS
| barrel (U.S.)
| c
| 360 dega
| revolution (cycle)
| cP
| 0.01 P
| centipoise
| cal
| 4.1868 J
| calorie (international)
| cm
| 0.01 m
| centimeter
| cu
| 0.1 1/m
| capture unit
| d
| 24 h
| day
| daN
| 10 N
| decanewton
| dega
| 0.0174532925198 rad
| degree (angle)
| degC
| K, -273.15
| degree celsius
| degF
| 5/9 degC, 32
| degree fahrenheit
| degR
| 5/9 K
| degree rankine
| dm
| 0.1 m
| decimeter
| ehp
| 746 W
| electric horsepower
| eV
| 1.60219E-19 J
| electron volt
| fC
| 1E-15 C
| femtocoulomb
| fm
| 1E-15 m
| femtometer
| ft
| 12 in
| foot (international)
| ftAM
| 0.30478897 m
| foot (American modified)
| ftCla
| 0.30479727 m
| foot (Clarke)
| ftUS
| 1200/3937 m
| foot (U.S. survey)
| g
| 0.001 kg
| gram
| galUK
| 4.54609E-3 m3
| gallon (U.K.)
| galUS
| 3.785411784E-3 m3
| gallon (U.S.)
| gf
| 0.001 kgf
| gram force
| h
| 60 min
| hour
| hL
| 100 L
| hectoliter
| ha
| 1E4 m2
| hectare
| hbar
| 100 bar
| hectobar
| hhp
| 746.043 W
| hydraulic horsepower
| hp
| 550 ft.lbf/s
| horsepower
| in
| 0.0254 m
| inch (international)
| inUS
| 1/12 ftUS
| inch (U.S. survey)
| kA
| 1000 A
| kiloampere
| kC
| 1000 C
| kilocoulomb
| kHz
| 1000 Hz
| kilohertz
| kJ
| 1000 J
| kilojoule
| kN
| 1000 N
| kilonewton
| kPa
| 1000 Pa
| kilopascal
| kS
| 1000 S
| kilosiemens
| kV
| 1000 V
| kilovolt
| kW
| 1000 W
| kilowatt
| kcal
| 1000 cal
| kilocalorie
| kcd
| 1000 cd
| kilocandela
| keV
| 1000 eV
| kiloelectronvolt
| kgf
| 9.806650 N
| kilogram force
| klx
| 1000 lx
| kilolux
| km
| 1000 m
| kilometer
| kmol
| 1000 mol
| killomole
| kohm
| 1000 ohm
| kilohm
| krad
| 1000 rad
| kiloradian
| lbf
| 4.4482216152605 N
| pound force
| lbm
| 0.45359237 kg
| pound mass (avoirdupois)
| lm
| cd.sr
| lumen
| lx
| cd.sr/m2
| lux
| mA
| 0.001 A
| milliampere
| mC
| 0.001 C
| millicoulomb
| mCi
| 0.001 Ci
| millicurie
| mD
| 0.9869233E-3 um2
| millidarcy
| mGal
| 0.001 Gal
| milligal
| mGy
| 0.001 Gy
| milligray
| mH
| 0.001 H
| millihenry
| mHz
| 0.001 Hz
| millihertz
| mJ
| 0.001 J
| millijoule
| mL
| 0.001 L
| milliliter
| mN
| 0.001 N
| millinewton
| mPa
| 0.001 Pa
| millipascal
| mS
| 0.001 S
| millisiemens
| mSv
| 0.001 Sv
| millisievert
| mT
| 0.001 T
| millitesla
| mV
| 0.001 V
| millivolt
| mW
| 0.001 W
| milliwatt
| mWb
| 0.001 Wb
| milliweber
| mbar
| 0.001 bar
| millibar
| mg
| 0.001 g
| milligram
| mi
| 5280 ft
| mile (statute)
| miUS
| 5280 ftUS
| mile (U.S. survey)
| min
| 60 s
| minute
| mina
| 1/60 dega
| minute (angle)
| mm
| 0.001 m
| millimeter
| mmol
| 0.001 mol
| millimole
| mohm
| 0.001 ohm
| milliohm
| mrad
| 0.001 rad
| milliradian
| ms
| 0.001 s
| millisecond
| nA
| 1E-9 A
| nanoampere
| nC
| 1E-9 C
| nanocoulomb
| nCi
| 1E-9 Ci
| nanocurie
| nH
| 1E-9 H
| nanohenry
| nJ
| 1E-9 J
| nanojoule
| nT
| 1E-9 T
| nanotesla
| nW
| 1E-9 W
| nanowatt
| nm
| 1E-9 m
| nanometer
| nohm
| 1E-9 ohm
| nanohm
| ns
| 1E-9 s
| nanosecond
| ohm
| V/A
| ohm
| ozf
| 1/16 lbf
| ounce force
| ozm
| 1/16 lbm
| ounce mass
| pA
| 1E-12 A
| picoampere
| pC
| 1E-12 C
| picocoulomb
| pCi
| 1E-12 Ci
| picocurie
| pF
| 1E-12 F
| picofarad
| pPa
| 1E-12 Pa
| picopascal
| pS
| 1E-12 S
| picosiemens
| pm
| 1E-12 m
| picometer
| ppdk
| 1E-4
| part per ten thousand
| ppk
| 0.001
| part per thousand
| ppm
| 1E-6
| part per million
| ps
| 1E-12 s
| picosecond
| psi
| lbf/in2
| pound per square inch
| pu
| 0.01 m3/m3
| porosity unit
| seca
| 1/3600 dega
| second (angle)
| t
| 1000 kg
| metric ton
| tonUK
| 2240 lbm
| long ton (U.K.)
| tonUS
| 2000 lbm
| short ton (U.S.)
| uA
| 1E-6 A
| microampere
| uC
| 1E-6 C
| microcoulomb
| uCi
| 1E-6 Ci
| microcurie
| uF
| 1E-6 F
| microfarad
| uH
| 1E-6 H
| microhenry
| uHz
| 1E-6 Hz
| microhertz
| uJ
| 1E-6 J
| microjoule
| uN
| 1E-6 N
| micronewton
| uPa
| 1E-6 Pa
| micropascal
| uS
| 1E-6 S
| microsiemens
| uT
| 1E-6 T
| microtesla
| uV
| 1E-6 V
| microvolt
| uW
| 1E-6 W
| microwatt
| uWb
| 1E-6 Wb
| microweber
| ubar
| 1E-6 bar
| microbar
| ug
| 1E-6 g
| microgram
| um
| 1E-6 m
| micrometer
| umol
| 1E-6 mole
| micromole
| uohm
| 1E-6 ohm
| microhm
| upsi
| 1E-6 psi
| micropound per square inch
| urad
| 1E-6 rad
| microradian
| us
| 1E-6 s
| microsecond
| |