Convert K to °C instantly — formula, worked examples and a conversion table of common values.
Convert kelvin (K) to celsius (°C). Enter a value on either side and the other updates instantly — nothing is sent to a server.
One kelvin equals -272.15 °C. The table below lists the values people look up most often, and each one links to a page with the worked calculation.
°C = K − 273.15| Kelvin (K) | Celsius (°C) |
|---|---|
| -40 | -313.15 |
| -20 | -293.15 |
| -10 | -283.15 |
| 0 | -273.15 |
| 10 | -263.15 |
| 20 | -253.15 |
| 25 | -248.15 |
| 30 | -243.15 |
| 37 | -236.15 |
| 40 | -233.15 |
| 100 | -173.15 |
| 180 | -93.15 |
| 200 | -73.15 |
1 kelvin = -272.15 °C.
300 K = 26.85 °C.
0 K = -273.15 °C.
Use the formula °C = K − 273.15. Or type any value into the converter above — it works in both directions.