Conversion Calculators

Convert Between Different Measurement Types

Use our free online calculators to easily convert between different units of measure. Simply select the appropriate calculator from the list below.



Weight & Mass
Supported Units: Pounds, Ounces, Kilograms, Troy Pounds, Scruples, Grams, Carats, Pennyweight, Poundals, Stones, Slugs, Quarter, Metric Tons, Short Tons and Long Tons

Metric Weight
Supported Units: microgram, milligram, centigram, decigram, gram, dekagram, hectogram, kilogram

Temperature
Supported Units: Celsius, Fahrenheit, Rankine, Reaumur, and Kelvin

Length & Distance
Supported Units: Millimeters, Centimeters, Inches, Feet, Yards, Meters, Kilometers, Miles, Mils, Rods, Fathoms and Nautical Miles

Volume
Supported Units: Liquid or dry - Liters, Fluid Ounces, Pints, Quarts, Gallons, Milliliter/cc, Barrels, Gill and Hogshead

Speed
Supported Units: centimeters/second, meters/second, kilometers/hour, feet/second, feet/minute, miles/hour, knots and mach

Pressure
Supported Units: dyne/sq cm, Pascal, poundal/sq foot, Torr, inch H2O and inch mercury.

Area
Supported Units: Square centimeter, Square meter, Square inch, Square foot, Square mile, Square Kilometer, Acres and Circles

Force
Supported Units: Dyne, gram-force, poundals, newtons, pounds and kgm-force

Energy
Supported Units: Joules, Btu, calories, electronvolt, erg, watt hour, therm, toe and tce

Frequency
Supported Units: Hertz, cycles per second, revolutions per second, degrees per second and radians per second

Power
Supported Units: Watts, BTU/hour, foot-lbs/second, Horsepower and kilowatts

Torque
Supported Units: Pound-force Foot, Pound-force Inch, Kilogram-force Meter, and Newton meter²

Astronomical
Supported Units: Astronomical unit, light-years and parsecs