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Convert temperatures between Celsius, Fahrenheit, Kelvin, and Rankine.
Temperature scales require an offset as well as a multiplier, so they cannot be converted with a simple ratio. Absolute temperature values below zero Kelvin are rejected.
Choose a measurement category and two units, then enter any finite positive or negative value allowed by that measurement. Adjust decimal places when the result needs more detail. Swap Units reverses the direction without discarding the current value.
Length · Area · Volume · Weight · Temperature · Speed · Pressure · Energy · Power · Data Storage · Frequency · Time · Angle
Celsius to Fahrenheit · Fahrenheit to Celsius · KG to LBS · LBS to KG · CM to Inches · Inches to CM · KM to Miles · Miles to KM · Liters to Gallons · Gallons to Liters · MB to GB · GB to MB
Calculations run locally. Display precision only changes the visible result; the converter keeps the full JavaScript numeric value for the next calculation.