Convert Kelvin to Celsius
Convert Kelvin to Celsius instantly. Free, accurate, with formula (°C = K − 273.15) and reference table.
0 K = -273.15 °C
Common temperatures
- Freezing: 0°C = 32°F
- Boiling: 100°C = 212°F
- Body temp: 37°C = 98.6°F
- Freezing: 32°F = 0°C
Formula
°C = K − 273.15
Built-in to the calculator above — no need to do the math by hand.
Kelvin to Celsius table
| K | °C |
|---|---|
| 1 K | -272.15 °C |
| 2 K | -271.15 °C |
| 3 K | -270.15 °C |
| 5 K | -268.15 °C |
| 10 K | -263.15 °C |
| 25 K | -248.15 °C |
| 50 K | -223.15 °C |
| 100 K | -173.15 °C |
| 250 K | -23.15 °C |
| 500 K | 226.85 °C |
| 1000 K | 726.85 °C |
About Kelvin to Celsius
Converting kelvin to celsius is one of the most common temperature conversions people search for — used in trade, engineering, cooking, travel, and everyday problem-solving. The math itself is a fixed conversion factor (°C = K − 273.15), but doing it by hand every time is slow and error-prone. This page gives you an instant live converter, a reference table for common values, and the formula broken out so you can trust the result. Everything runs in your browser, and the conversion happens the moment you type — no button to press, no reload, no upload.
How to convert K to °C
- 1Type your value in the Kelvin input above.
- 2The Celsius result updates instantly to the right precision.
- 3Compare against the reference table below for common values.
- 4Copy the answer or bookmark the page for next time.