| | Name | Description |
|---|
  | ACRE | Acre in square metres. |
| ANGSTROM | Angstrom in metres. |
| ASTRONOMICAL_UNIT | Astronomical unit (mean Earth–Sun distance), in metres. |
| AVOGADROS_CONSTANT | Avogadro's constant (number of particles per mole). |
| BAR | Bar in pascals (kg / m s^2). |
| BARN | Barn in square metres. |
| BOHR_MAGNETON | Bohr magneton, in A m^2. |
| BOHR_RADIUS | Bohr radius in metres. |
| BOLTZMANN | Boltzmann constant, in kg m^2 / K s^2 (J/K). |
| BTU | British Thermal Unit (BTU) in joules. |
| CALORIE | International calorie in joules. |
| CANADIAN_GALLON | Canadian gallon in cubic metres. |
| CARAT | Carat in kilograms. |
| CUP | Cup in cubic metres. |
| CURIE | Curie (radioactivity) in decays per second. |
| DAY | One day in seconds. |
| DEBYE | Debye in coulomb-metre (A s^2 / m^2). |
| DYNE | Dyne (unit of force) in SI base units (kg m / s^2). |
| ELECTRON_CHARGE | Elementary charge in coulombs (A s). |
| ELECTRON_MAGNETIC_MOMENT | Electron magnetic moment, in A m^2. |
| ELECTRON_VOLT | Electron volt in joules (kg m^2 / s^2). |
| ERG | Erg (unit of energy) in SI base units (kg m^2 / s^2). |
| FARADAY | Faraday constant, coulombs per mole (A s / mol). |
| FATHOM | Fathom in metres. |
| FLUID_OUNCE | Fluid ounce in cubic metres. |
| FOOT | One foot in metres. |
| FOOTCANDLE | Footcandle in lumens per square metre. |
| FOOTLAMBERT | Footlambert conversion factor. |
| GAUSS | Gauss to tesla conversion (1 G = 1e-4 T). |
| GRAM_FORCE | Gram-force in newtons (kg m / s^2). |
| GRAV_ACCEL | Standard acceleration of gravity, in metres per second squared. |
| GRAVITATIONAL_CONSTANT | Newtonian gravitational constant, in m^3 / kg s^2. |
| HECTARE | Hectare in square metres. |
| HORSEPOWER | Horsepower in watts (kg m^2 / s^3). |
| HOUR | One hour in seconds. |
| INCH | One inch in metres. |
| INCH_OF_MERCURY | Inch of mercury in pascals. |
| INCH_OF_WATER | Inch of water in pascals. |
| JOULE | Joule (unit of energy) in SI base units (kg m^2 / s^2). |
| KILOMETERS_PER_HOUR | Kilometers per hour in metres per second. |
| KILOPOUND_FORCE | Kilopound-force in newtons (kg m / s^2). |
| KNOT | Knot (nautical mile per hour) in metres per second. |
| LAMBERT | Lambert (unit of luminance) conversion factor. |
| LIGHT_YEAR | Light year, in metres. |
| LITER | Liter in cubic metres. |
| LUMEN | Lumen (candela-steradian) unit factor. |
| LUX | Lux (lumen per square metre) unit factor. |
| MASS_ELECTRON | Mass of the electron, in kilograms. |
| MASS_MUON | Mass of the muon, in kilograms. |
| MASS_NEUTRON | Mass of the neutron, in kilograms. |
| MASS_PROTON | Mass of the proton, in kilograms. |
| METER_OF_MERCURY | Metre of mercury (mm Hg) in pascals. |
| METRIC_TON | Metric ton (tonne) in kilograms. |
| MICRON | Micron (micrometer) in metres. |
| MIL | Thousandth of an inch (mil) in metres. |
| MILE | One mile in metres. |
| MILES_PER_HOUR | Miles per hour in metres per second. |
| MINUTE | One minute in seconds. |
| MOLAR_GAS | Molar gas constant R, in J / (K mol). |
| NAUTICAL_MILE | Nautical mile in metres. |
| NEWTON | Newton (unit of force) in SI base units (kg m / s^2). |
| NUCLEAR_MAGNETON | Nuclear magneton, in A m^2. |
| OUNCE_MASS | Ounce (mass) in kilograms. |
| PARSEC | Parsec, in metres. |
| PHOT | Phot (candela-steradian per square metre). |
| PINT | Pint in cubic metres. |
| PLANCKS_CONSTANT_H | Planck's constant h, in kg m^2 / s. |
| PLANCKS_CONSTANT_HBAR | Reduced Planck's constant ħ (h-bar), in kg m^2 / s. |
| POINT | Typographic point in metres. |
| POISE | Poise (dynamic viscosity) in kg m^-1 s^-1. |
| POUND_FORCE | Pound-force in newtons (kg m / s^2). |
| POUND_MASS | Pound mass in kilograms. |
| POUNDAL | Poundal in newtons (kg m / s^2). |
| PROTON_MAGNETIC_MOMENT | Proton magnetic moment, in A m^2. |
| PSI | Pound per square inch (psi) in pascals. |
| QUART | Quart in cubic metres. |
| RAD | Rad (radiation absorbed dose) in joules per kilogram. |
| ROENTGEN | Roentgen in coulombs per kilogram. |
| RYDBERG | Rydberg energy, in joules (kg m^2 / s^2). |
| SOLAR_MASS | Solar mass in kilograms. |
| SPEED_OF_LIGHT | Speed of light in vacuum, in metres per second. |
| STANDARD_GAS_VOLUME | Standard molar volume of an ideal gas at STP, in cubic metres per mole. |
| STD_ATMOSPHERE | Standard atmosphere in pascals. |
| STEFAN_BOLTZMANN_CONSTANT | Stefan-Boltzmann constant in kg / K^4 s^3 (W / m^2 K^4). |
| STILB | Stilb (candela per square metre) conversion factor. |
| STOKES | Stokes (kinematic viscosity) in square metres per second. |
| TABLESPOON | Tablespoon in cubic metres. |
| TEASPOON | Teaspoon in cubic metres. |
| TEXPOINT | TeX point in metres. |
| THERM | Therm in joules. |
| THOMSON_CROSS_SECTION | Thomson scattering cross-section in square metres. |
| TON | Ton (short ton) in kilograms. |
| TORR | Torr in pascals. |
| TROY_OUNCE | Troy ounce in kilograms. |
| UK_GALLON | UK gallon in cubic metres. |
| UK_TON | UK ton (long ton) in kilograms. |
| UNIFIED_ATOMIC_MASS | Unified atomic mass unit (Dalton) in kilograms. |
| US_GALLON | US gallon in cubic metres. |
| VACUUM_PERMEABILITY | Vacuum permeability (magnetic constant) in kg m / A^2 s^2. |
| VACUUM_PERMITTIVITY | Vacuum permittivity (electric constant) in A^2 s^4 / kg m^3. |
| WEEK | One week in seconds. |
| YARD | One yard in metres. |
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