# 4 List of physical units

The following table lists all of the physical units which Pyxplot recognises by default. Each unit may be referred to by either a long or an abbreviated name, and both of these have singular and plural forms. Some units also have further alternative names: for example, units such as the `meter` which are spelt differently in British English may be spelt in either way.

Name |
--- | ---
Full | Abbrev | Unit of
sing. | pl. | sing. | pl. |
`acre` | `acres` | `acre` | `acres` | area
`ampere` | `amperes` | `A` | `A` | current
Also known as the `amp` and the `amps`.
`angstrom` | `angstroms` | `ang` | `ang` | length
`arcminute` | `arcminutes` | `arcmin` | `arcmins` | angle
`arcsecond` | `arcseconds` | `arcsec` | `arcsecs` | angle
`are` | `ares` | `are` | `ares` | area
`astronomical_unit` | `astronomical_units` | `AU` | `AU` | length
`atmosphere` | `atmospheres` | `atm` | `atms` | pressure
`bar` | `bars` | `bar` | `bars` | pressure
`barleycorn` | `barleycorns` | `barleycorn` | `barleycorns` | length
`barn` | `barns` | `barn` | `barns` | area
`barye` | `baryes` | `Ba` | `Ba` | pressure
`bath` | `baths` | `bath` | `baths` | volume
`becquerel` | `becquerel` | `Bq` | `Bq` | frequency
`billion_electronvolts` | `billion_electronvolts` | `BeV` | `BeV` | energy
`bit` | `bits` | `bit` | `bits` | information_content
`British Thermal Unit` | `British Thermal Units` | `BTU` | `BTU` | energy
`bushel_UK` | `bushels_UK` | `bushel_UK` | `bushels_UK` | volume (UK imperial)
`bushel_US` | `bushels_US` | `bushel_US` | `bushels_US` | volume (US customary)
`byte` | `bytes` | `B` | `B` | information_content
`cable` | `cables` | `cable` | `cables` | length
`calorie` | `calories` | `cal` | `cal` | energy
`candela` | `candelas` | `cd` | `cd` | light_intensity
`candlepower` | `candlepower` | `candlepower` | `candlepower` | light_intensity
`carat` | `carats` | `CD` | `CDs` | mass
`centimetre` | `centimetres` | `cm` | `cm` | length
`chain` | `chains` | `chain` | `chains` | length
`clo` | `clos` | `clo` | `clos` | thermal_insulation
`coulomb` | `coulombs` | `C` | `C` | charge
`cubic_centimetre` | `cubic_centimetres` | `cubic_cm` | `cubic_cm` | volume
`cubic_foot` | `cubic_feet` | `cubic_ft` | `cubic_ft` | volume
`cubic_inch` | `cubic_inches` | `cubic_in` | `cubic_in` | volume
`cubic_metre` | `cubic_metres` | `cubic_m` | `cubic_m` | volume
`cubit` | `cubits` | `cubit` | `cubits` | length
`cup_US` | `cups_US` | `cup_US` | `cups_US` | volume (US customary)
`day` | `days` | `day` | `days` | time
`decimetre` | `decimetres` | `dm` | `dm` | length
`degree` | `degrees` | `deg` | `deg` | angle
`degree_celsius` | `degrees_celsius` | `oC` | `oC` | temperature
Also known as the `degree_centigrade`, the `degrees_centigrade`, the `centigrade` and the `celsius`.
`degree_fahrenheit` | `degrees_fahrenheit` | `oF` | `oF` | temperature
Also known as the `fahrenheit`.
`dioptre` | `dioptres` | `dioptre` | `dioptres` | lens_power
`drachm` | `drachms` | `drachm` | `drachms` | mass
`dyne` | `dynes` | `dyn` | `dyn` | force
`earth_mass` | `earth_masses` | `Mearth` | `Mearth` | mass
`earth_radius` | `earth_radii` | `Rearth` | `Rearth` | length
`electronvolt` | `electronvolts` | `eV` | `eV` | energy
`erg` | `ergs` | `erg` | `erg` | energy
`euro` | `euros` | `euro` | `euros` | cost
`farad` | `farad` | `F` | `F` | capacitance
`fathom` | `fathoms` | `fathom` | `fathoms` | length
`firkin_UK_ale` | `firkins_UK_ale` | `firkin_UK_ale` | `firkins_UK_ale` | volume
`firkin_wine` | `firkins_wine` | `firkin_UK_wine` | `firkins_UK_wine` | volume
`fluid_ounce_UK` | `fluid_ounce_UK` | `fl_oz_UK` | `fl_oz_UK` | volume (UK imperial)
`fluid_ounce_US` | `fluid_ounce_US` | `fl_oz_US` | `fl_oz_US` | volume (US customary)
`foot` | `feet` | `ft` | `ft` | length
`furlong` | `furlongs` | `furlong` | `furlongs` | length
`gallon_UK` | `gallons_UK` | `gallon_UK` | `gallons_UK` | volume (UK imperial)
`gallon_US` | `gallons_US` | `gallon_US` | `gallons_US` | volume (US customary)
`gauss` | `gauss` | `G` | `G` | magnetic_field
`gibibit` | `gibibits` | `Gib` | `Gib` | information_content
`gibibyte` | `gibibytes` | `GiB` | `GiB` | information_content
`grain` | `grains` | `grain` | `grains` | mass
`gram` | `grams` | `g` | `g` | mass
`gramme` | `grammes` | `g` | `g` | mass
`gray` | `gray` | `Gy` | `Gy` | radiation_dose
`hectare` | `hectares` | `hectare` | `hectares` | area
`henry` | `henry` | `H` | `H` | inductance
`hertz` | `hertz` | `Hz` | `Hz` | frequency
`homer` | `homers` | `homer` | `homers` | volume
`horsepower` | `horsepower` | `horsepower` | `horsepower` | power
`hour` | `hours` | `hr` | `hr` | time
`hundredweight_UK` | `hundredweight_UK` | `cwt_UK` | `cwt_UK` | mass (UK imperial)
`hundredweight_US` | `hundredweight_US` | `cwt_US` | `cwt_US` | mass (US customary)
`inch` | `inches` | `in` | `in` | length
`inch_of_mercury` | `inches_of_mercury` | `inHg` | `inHg` | pressure
`inch_of_water` | `inches_of_water` | `inAq` | `inAq` | pressure
`jansky` | `janskys` | `Jy` | `Jy` | flux_density
`joule` | `joules` | `J` | `J` | energy
`jupiter_mass` | `jupiter_masses` | `Mjupiter` | `Mjupiter` | mass
Also known as the `Mjove` and the `Mjovian`.
`jupiter_radius` | `jupiter_radii` | `Rjupiter` | `Rjupiter` | length
Also known as the `Rjove` and the `Rjovian`.
`katal` | `katals` | `kat` | `kat` | catalytic_activity
`kayser` | `kaysers` | `kayser` | `kaysers` | wavenumber
`kelvin` | `kelvin` | `K` | `K` | temperature
`kibibit` | `kibibits` | `Kib` | `Kib` | information_content
`kibibyte` | `kibibytes` | `KiB` | `KiB` | information_content
`kilderkin_UK_ale` | `kilderkins_UK_ale` | `kilderkin_UK_ale` | `kilderkins_UK_ale` | volume
`kilogram` | `kilograms` | `kg` | `kg` | mass
`kilowatt_hour` | `kilowatt_hours` | `kWh` | `kWh` | energy
`knot` | `knots` | `kn` | `kn` | velocity
`light_year` | `light_years` | `lyr` | `lyr` | length
`link` | `links` | `link` | `links` | length
`litre` | `litres` | `l` | `l` | volume
`long_ton` | `long_tons` | `ton` | `tons` | mass (UK imperial)
`lumen` | `lumens` | `lm` | `lm` | power
`lunar_distance` | `lunar_distances` | `lunar_distance` | `lunar_distances` | length
`lux` | `luxs` | `lx` | `lx` | power
`maxwell` | `maxwell` | `Mx` | `Mx` | magnetic_flux
`mebibit` | `mebibits` | `Mib` | `Mib` | information_content
`mebibyte` | `mebibytes` | `MiB` | `MiB` | information_content
`metre` | `metres` | `m` | `m` | length
`mho` | `mhos` | `mho` | `mhos` | conductance
`mile` | `miles` | `mi` | `mi` | length
`mile_per_hour` | `miles_per_hour` | `mph` | `mph` | velocity
`mina` | `minas` | `mina` | `minas` | mass
`minute` | `minutes` | `min` | `min` | time
`mole` | `moles` | `mol` | `mol` | moles
`nautical_mile` | `nautical_miles` | `nautical_mile` | `nautical_miles` | length
`newton` | `newtons` | `N` | `N` | force
`ohm` | `ohms` | `ohm` | `ohms` | resistance
`ounce` | `ounces` | `oz` | `oz` | mass
`parsec` | `parsecs` | `pc` | `pc` | length
`parts_per_billion` | `parts_per_billion` | `ppb` | `ppb` | dimensionlessness
`parts_per_million` | `parts_per_million` | `ppm` | `ppm` | dimensionlessness
`pascal` | `pascals` | `Pa` | `Pa` | pressure
`percent` | `percent` | `percent` | `percent` | dimensionlessness
`perch` | `perches` | `perch` | `perches` | length
`pica` | `picas` | `pica` | `picas` | length
`pint_UK` | `pints_UK` | `pint_UK` | `pints_UK` | volume (UK imperial)
`pint_US` | `pints_US` | `pint_US` | `pints_US` | volume (US customary)
`planck_charge` | `planck_charges` | `Q_planck` | `Q_planck` | charge
`planck_current` | `planck_current` | `I_planck` | `I_planck` | current
`planck_energy` | `planck_energy` | `E_planck` | `E_planck` | energy
`planck_force` | `planck_force` | `F_planck` | `F_planck` | force
`planck_impedence` | `planck_impedence` | `Z_planck` | `Z_planck` | resistance
`planck_length` | `planck_lengths` | `L_planck` | `L_planck` | length
`planck_mass` | `planck_masses` | `M_planck` | `M_planck` | mass
`planck_momentum` | `planck_momentum` | `p_planck` | `p_planck` | momentum
`planck_power` | `planck_power` | `P_planck` | `P_planck` | power
`planck_temperature` | `planck_temperature` | `Theta_planck` | `Theta_planck` | temperature
`planck_time` | `planck_times` | `T_planck` | `T_planck` | time
`planck_voltage` | `planck_voltage` | `V_planck` | `V_planck` | potential
`point` | `points` | `pt` | `pt` | length
`poise` | `poises` | `P` | `P` | viscosity
`pole` | `poles` | `pole` | `poles` | length
`pound` | `pounds` | `lb` | `lbs` | mass
`pound_force` | `pounds_force` | `lbf` | `lbf` | force
`pound_per_square_inch` | `pounds_per_square_inch` | `psi` | `psi` | pressure
`quart_UK` | `quarts_UK` | `quart_UK` | `quarts_UK` | volume (UK imperial)
`quart_US` | `quarts_US` | `quart_US` | `quarts_US` | volume (US customary)
`radian` | `radians` | `rad` | `rad` | angle
`rankin` | `rankin` | `R` | `R` | temperature
`revolution` | `revolutions` | `rev` | `rev` | angle
`rod` | `rods` | `rod` | `rods` | length
`roman_league` | `roman_leagues` | `roman_league` | `roman_leagues` | length
`roman_mile` | `roman_miles` | `roman_mile` | `roman_miles` | length
`rood` | `roods` | `rood` | `roods` | area
`second` | `seconds` | `s` | `s` | time
Also known as the `sec` and the `secs`.
`shekel` | `shekels` | `shekel` | `shekels` | mass
`short_ton` | `short_tons` | `short_ton` | `short_tons` | mass (US customary)
`siemens` | `siemens` | `S` | `S` | conductance
`sievert` | `sieverts` | `Sv` | `Sv` | radiation_dose
`slug` | `slugs` | `slug` | `slugs` | mass
`sol` | `sols` | `sol` | `sols` | time
`solar_luminosity` | `solar_luminosities` | `Lsun` | `Lsun` | power
Also known as the `Lsolar`.
`solar_mass` | `solar_masses` | `Msun` | `Msun` | mass
Also known as the `Msolar`.
`solar_radius` | `solar_radii` | `Rsun` | `Rsun` | length
Also known as the `Rsolar`.
`square_centimetre` | `square_centimetres` | `sq_cm` | `sq_cm` | area
`square_degree` | `square_degrees` | `sqdeg` | `sqdeg` | solidangle
`square_foot` | `square_feet` | `sq_ft` | `sq_ft` | area
`square_inch` | `square_inches` | `sq_in` | `sq_in` | area
`square_kilometre` | `square_kilometres` | `sq_km` | `sq_km` | area
`square_metre` | `square_metres` | `sq_m` | `sq_m` | area
`square_mile` | `square_miles` | `sq_mi` | `sq_mi` | area
`steradian` | `steradians` | `sterad` | `sterad` | solidangle
`stone` | `stone` | `stone` | `stone` | mass
`tablespoon` | `tablespoons` | `tablespoon` | `tablespoons` | volume
`talent` | `talents` | `talent` | `talents` | mass
`teaspoon` | `teaspoons` | `teaspoon` | `teaspoons` | volume
`tesla` | `tesla` | `T` | `T` | magnetic_field
`therm` | `therms` | `therm` | `therms` | energy
`tog` | `togs` | `tog` | `togs` | thermal_insulation
`tonne` | `tonnes` | `t` | `t` | mass
Also known as the `metric_tonne` and the `metric_tonnes`.
`troy_ounce` | `troy_ounces` | `oz_troy` | `oz_troy` | mass
`volt` | `volts` | `V` | `V` | potential
`watt` | `watts` | `W` | `W` | power
`weber` | `weber` | `Wb` | `Wb` | magnetic_flux
`week` | `weeks` | `week` | `weeks` | time
`yard` | `yards` | `yd` | `yd` | length
`year` | `years` | `yr` | `yr` | time

The following units of angle are recognised:
the `arcminute`, the `arcsecond`, the `degree`, the `radian` and the `revolution`.

The following units of area are recognised:
the `acre`, the `are`, the `barn`, the `hectare`, the `rood`, the `square_centimetre`, the `square_foot`, the `square_inch`, the `square_kilometre`, the `square_metre` and the `square_mile`.

The following units of capacitance are recognised:
the `farad`.

The following units of catalytic activity are recognised:
the `katal`.

The following units of charge are recognised:
the `coulomb` and the `planck_charge`.

The following units of conductance are recognised:
the `mho` and the `siemens`.

The following units of cost are recognised:
the `euro`.

The following units of current are recognised:
the `ampere` and the `planck_current`.

The following units of dimensionlessness are recognised:
the `parts_per_billion`, the `parts_per_million` and the `percent`.

The following units of energy are recognised:
the `British Thermal Unit`, the `billion_electronvolts`, the `calorie`, the `electronvolt`, the `erg`, the `joule`, the `kilowatt_hour`, the `planck_energy` and the `therm`.

The following units of flux density are recognised:
the `jansky`.

The following units of force are recognised:
the `dyne`, the `newton`, the `planck_force` and the `pound_force`.

The following units of frequency are recognised:
the `becquerel` and the `hertz`.

The following units of inductance are recognised:
the `henry`.

The following units of information content are recognised:
the `bit`, the `byte`, the `gibibit`, the `gibibyte`, the `kibibit`, the `kibibyte`, the `mebibit` and the `mebibyte`.

The following units of length are recognised:
the `angstrom`, the `astronomical_unit`, the `barleycorn`, the `cable`, the `centimetre`, the `chain`, the `cubit`, the `decimetre`, the `earth_radius`, the `fathom`, the `foot`, the `furlong`, the `inch`, the `jupiter_radius`, the `light_year`, the `link`, the `lunar_distance`, the `metre`, the `mile`, the `nautical_mile`, the `parsec`, the `perch`, the `pica`, the `planck_length`, the `point`, the `pole`, the `rod`, the `roman_league`, the `roman_mile`, the `solar_radius` and the `yard`.

The following units of lens power are recognised:
the `dioptre`.

The following units of light intensity are recognised:
the `candela` 1 and the `candlepower`.

The following units of magnetic field are recognised:
the `gauss` and the `tesla`.

The following units of magnetic flux are recognised:
the `maxwell` and the `weber`.

The following units of mass are recognised:
the `carat`, the `drachm`, the `earth_mass`, the `grain`, the `gram`, the `gramme`, the `hundredweight_UK`, the `hundredweight_US`, the `jupiter_mass`, the `kilogram`, the `long_ton`, the `mina`, the `ounce`, the `planck_mass`, the `pound`, the `shekel`, the `short_ton`, the `slug`, the `solar_mass`, the `stone`, the `talent`, the `tonne` and the `troy_ounce`.

The following units of moles are recognised:
the `mole`.

The following units of momentum are recognised:
the `planck_momentum`.

The following units of potential are recognised:
the `planck_voltage` and the `volt`.

The following units of power are recognised:
the `horsepower`, the `lumen`, the `lux`, the `planck_power`, the `solar_luminosity` and the `watt`.

The following units of pressure are recognised:
the `atmosphere`, the `bar`, the `barye`, the `inch_of_mercury`, the `inch_of_water`, the `pascal` and the `pound_per_square_inch`.

The following units of radiation dose are recognised:
the `gray` and the `sievert`.

The following units of resistance are recognised:
the `ohm` and the `planck_impedence`.

The following units of solidangle are recognised:
the `square_degree` and the `steradian`.

The following units of temperature are recognised:
the `degree_celsius`, the `degree_fahrenheit`, the `kelvin`, the `planck_temperature` and the `rankin`.

The following units of thermal insulation are recognised:
the `clo` and the `tog`.

The following units of time are recognised:
the `day`, the `hour`, the `minute`, the `planck_time`, the `second`, the `sol`, the `week` and the `year`.

The following units of velocity are recognised:
the `knot` and the `mile_per_hour`.

The following units of viscosity are recognised:
the `poise`.

The following units of volume are recognised:
the `bath`, the `bushel_UK`, the `bushel_US`, the `cubic_centimetre`, the `cubic_foot`, the `cubic_inch`, the `cubic_metre`, the `cup_US`, the `firkin_UK_ale`, the `firkin_wine`, the `fluid_ounce_UK`, the `fluid_ounce_US`, the `gallon_UK`, the `gallon_US`, the `homer`, the `kilderkin_UK_ale`, the `litre`, the `pint_UK`, the `pint_US`, the `quart_UK`, the `quart_US`, the `tablespoon` and the `teaspoon`.

The following units of wavenumber are recognised:
the `kayser`.

Footnotes

1. In the SI system, the candela is a base unit. However, its definition is 1/683 W/sterad, and since Pyxplot recognises the radian as a base unit, the candela is implemented as a derived unit.