QUICK CONVERSION
Kelvin to Celsius
Enter a value to convert kelvin to celsius, or use the right-hand input to convert in reverse.
How to convert kelvin to celsius
These temperature scales have different zero points, so conversion requires a scale factor and an offset. The calculator applies the correct temperature formula automatically.
For example, 0 K equals -273.15 °C.
Common conversion values
| Kelvin (K) | Celsius (°C) |
|---|---|
| 0 | -273.15 |
| 1 | -272.15 |
| 2 | -271.15 |
| 5 | -268.15 |
| 10 | -263.15 |
| 20 | -253.15 |
| 25 | -248.15 |
| 50 | -223.15 |
| 100 | -173.15 |
| 500 | 226.85 |
| 1000 | 726.85 |
Important measurement notes
Temperature values are absolute readings, not temperature differences; the conversion therefore includes an offset where required.
Related conversions
Figures are rounded for display. For regulated or safety-critical work, confirm the relevant measurement standard and precision.