Temperature Converter

Convert between Fahrenheit, Celsius and Kelvin. All three results appear at once, so you can read off whichever scale you need.

Type a number and the answer appears straight away.

Your answer

72 °F =22.22 °C

Celsius
22.22 °C
Fahrenheit
72 °F
Kelvin
295.37 K

The math behind it: Temperature

°C = (°F - 32) x 5/9 °F = °C x 9/5 + 32 K = °C + 273.15

Unlike most conversions, temperature needs an offset as well as a multiplier, because the scales have different zero points. Water freezes at 32 °F, 0 °C and 273.15 K.

Common questions

At what temperature are Fahrenheit and Celsius equal?

At minus 40. It is the one point where the two scales cross: -40 °F is -40 °C.

Is there a quick way to estimate Celsius to Fahrenheit?

Double the Celsius figure and add 30. For 20 °C that gives 70 °F; the exact answer is 68 °F.

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