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Kelvin to Celsius Converter
Convert kelvin to °C instantly, with Fahrenheit alongside.
Enter a temperature to convert it
Enter a temperature and pick its scale. The other scales are calculated live as you type — right here in your browser, with nothing sent to a server.
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How to convert Kelvin to Celsius
Subtract 273.15 from the Kelvin temperature. For example, 300 K − 273.15 = 26.85 °C. The step size is the same on both scales, so a change of 10 K is a change of 10 °C. The converter above also shows Fahrenheit, which is handy for turning lab or astronomy figures into everyday terms.
Kelvin to Celsius table
| Kelvin (K) | Celsius (°C) |
|---|---|
| 0 K | -273.15 °C |
| 77 K | -196.15 °C |
| 273.15 K | 0 °C |
| 300 K | 26.85 °C |
| 373.15 K | 100 °C |
| 5778 K | 5504.85 °C |
Common questions
What is 0 K in Celsius?
0 K is −273.15 °C, absolute zero, the lowest possible temperature.
What is 77 K in Celsius?
77 K is −196.15 °C, roughly the boiling point of liquid nitrogen.
How hot is the Sun's surface in Celsius?
The Sun's surface is about 5,778 K, which is about 5,505 °C.