Unit Converters

Kelvin Converter (K to Celsius, Fahrenheit, Rankine)

Type a temperature in kelvin and you get Celsius, Fahrenheit, and Rankine at the same time. Kelvin is the SI base unit, so this is handy for thermodynamics, astronomy, and HVAC work.

Conversion factors are exact; rounding may affect the final digit.
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Common values

KelvinCelsiusFahrenheitRankine
0 K-273.15 °C-459.67 °F0 °R
273.15 K0 °C32 °F491.67 °R
300 K26.85 °C80.33 °F540 °R
373.15 K100 °C212 °F671.67 °R

Common questions

How do I convert kelvin to Celsius?

Subtract 273.15 from the kelvin value. So 300 K is 26.85 °C.

Why is there no degree symbol on kelvin?

By SI convention kelvin is written as just K, with no degree sign, unlike °C and °F.

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