Temperature: kelvin, celsius, fahrenheit, rankine, réamur
Length: kilometer, meter, decimeter, centimeter, millimeter, micrometer, mile, nautical mile, foot, inch, mil, astronomical unit, angstrom
Pressure: megapascal, kilopascal, hectopascal, pascal, bar, millibar, atmosphere(atm), atmosphere(at), torr, PSI, mm of mercury, mm of water, inch of water
Volume: cubic meter, hectoliter, liter, milliliter, barrel (US, UK), gallon (US, UK), pint (US, UK), fluid ounce (US, UK), cubic yard, cubic foot, cubic inch, cup, table spoon, tea spoon
Area: square kilometer, square meter, square centimeter, square millimeter, square mile, square yard, square foot, square foot, square inch, hectare, are, acre
Mass: metric ton, kilogram, gram, milligram, short ton, pound, ounce, long ton, troy pound, troy ounce
Power: kilowatt, watt, BTU/hour, BTU/minute, horsepower, foot pounds/minute, foot pounds/second
Energy: kilojoule, joule, calorie, kilowatt hour, watt hour, BTU, foot-pound, erg
Currency: US Dollars, Euros, British Pounds, Australian Dollars, Japanese Yen, Canadian Dollars, Swiss Franc, Czech Koruna, Russian Ruble, Mexican Pesos, Norwegian Kroner, Danish Kroner, Swedish Krona, Brazil Real, Israeli Shekel, Indian Rupee, Hong Kong Dollars, Hungarian Forint
Time: years, days, hours, minutes, seconds, nanoseconds
Consumption: MPG (US), MPG (UK), L/100 km, km/L
Speed: meter per second, kilometer per hour, knot, mile per second, mile per hour, speed of light