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Convert kelvin to celsius

1 kelvin equals -272.15 celsius. Type any number below — the other side updates instantly.

Kelvin to celsius — quick reference

kelvincelsius
0 K-273.15 °C
100 K-173.15 °C
200 K-73.15 °C
273 K-0.15 °C
300 K26.85 °C
373 K99.85 °C
400 K126.85 °C
500 K226.85 °C
600 K326.85 °C
1000 K726.85 °C

How to convert

Temperature uses an offset, not a simple ratio. Kelvin converts to Celsius via the standard temperature formula. For reference: 1 K ≈ -272.15 °C, and 1 °C ≈ 274.15 K.

About these units

Kelvin

Definition
Kelvin (symbol: K) is the SI base unit of thermodynamic temperature. 0 K is absolute zero; the magnitude of one kelvin equals one degree Celsius.
History
Named after Lord Kelvin, who proposed the absolute thermodynamic scale in 1848. Redefined in 2019 by fixing the Boltzmann constant.
Current use
Kelvin is the standard temperature unit in physics, chemistry, and engineering — anywhere absolute temperatures matter, including color temperature in lighting and photography.

Celsius

Definition
Celsius (symbol: °C) is a temperature scale where 0 °C is the freezing point of water and 100 °C is its boiling point at standard atmospheric pressure.
History
Anders Celsius proposed the inverted version of the scale (with 0° as boiling) in 1742; it was reversed to its current form shortly after his death.
Current use
Celsius is the everyday temperature scale in nearly every country and the standard scientific scale for non-thermodynamic work.

Frequently asked

How many celsius are in 1 kelvin?
1 kelvin = -272.15 celsius.
How do you convert kelvin to celsius?
Temperature uses an offset, not a simple ratio. Kelvin converts to Celsius via the standard temperature formula. For reference: 1 K ≈ -272.15 °C, and 1 °C ≈ 274.15 K.
What is 373 kelvin in celsius?
373 kelvin = 99.85 celsius.
Reverse conversionCelsius to kelvin

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