Convert Kelvin to Celsius
Instant temperature conversion, with the formula and a full reference table.
1 K
-272.15 °C
1 °C = 274.15 K
How to convert Kelvin to Celsius
Temperature scales do not share a zero point, so the conversion needs an offset as well as a multiplier — you cannot simply scale the number.
°°C = (°K × 1 − 273.15 − 0) ÷ 1
Worked example
To convert 25 K: apply the formula above to get -248.15 °C.
Kelvin to Celsius conversion table
| Kelvin (K) | Celsius (°C) |
|---|---|
| 1 | -272.15 |
| 2 | -271.15 |
| 3 | -270.15 |
| 5 | -268.15 |
| 10 | -263.15 |
| 20 | -253.15 |
| 25 | -248.15 |
| 50 | -223.15 |
| 100 | -173.15 |
| 250 | -23.15 |
| 500 | 226.85 |
| 1,000 | 726.85 |