Kelvin to Celsius
Convert kelvin to celsius instantly with the formula and a quick reference table.
Quick answer: Formula: °C = K − 273.15. For example, 0 K = -273.15 °C, and 100 K = -173.15 °C.
Good to know
- A quick estimate from °C to °F: double it and add 30. It is close for everyday weather.
- Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F) at sea level. Normal body temperature is about 37 °C (98.6 °F).
Quick reference
| K | °C |
|---|---|
| -40 | -313.15 |
| 0 | -273.15 |
| 20 | -253.15 |
| 37 | -236.15 |
| 100 | -173.15 |
| 200 | -73.15 |
Frequently asked questions
What is the formula to convert kelvin to celsius?
°C = K − 273.15
What is 100 kelvin in celsius?
100 K = -173.15 °C.
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