Temperature Converter (°C, °F, K)

Enter a temperature and pick units — the conversion updates instantly.

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ValueFromTo

Show all units

How to use

Type a temperature in “Value” and choose the units to convert from and to. Add a minus sign for readings below zero.
The arrow button in the middle flips Celsius → Fahrenheit into Fahrenheit → Celsius.
“Show all units” lists the same temperature in Kelvin, Rankine and Réaumur as well.
The page address keeps your value and units, so you can share the link as is.

How do I convert Fahrenheit to Celsius?

Subtract 32, then multiply by 5/9. For example, 100 °F is about 37.8 °C. To go the other way, multiply by 9/5 and add 32.

What is normal body temperature in Fahrenheit?

The classic figure of 98.6 °F equals 37 °C. A reading of 36.5 °C works out to 97.7 °F.

Is there a temperature where Celsius and Fahrenheit match?

Yes, at −40. Minus 40 °C and minus 40 °F are exactly the same temperature.

How is Kelvin related to Celsius?

The steps are the same size; only the zero point moves. Kelvin = Celsius + 273.15, and 0 K (−273.15 °C) is absolute zero.