4 CALCULATORS
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Convert lengths, weights, temperatures and volumes using the exact international definitions, such as 1 inch = 2.54 cm and 1 pound = 0.45359237 kg, so results are exact rather than rounded approximations.
US and UK measures that share a name but differ in size, such as gallons, pints and fluid ounces, are kept separate, and every converter shows the value in several other units at once.
DistanceLength converter Convert between metres, centimetres, kilometres, inches, feet, yards and miles using the exact international definitions.MassWeight converter Convert between kilograms, grams, pounds, ounces, stone and tonnes using the exact international definitions.TemperatureTemperature converter Convert between Celsius, Fahrenheit and Kelvin, with all three shown at once.VolumeVolume converter Convert between litres, millilitres, cubic metres, cups, spoons, fluid ounces, pints and gallons, with US and UK measures kept separate.