Temperature
Kelvin to Celsius Converter
1 K = -272.15 °C. Enter any value and the result updates instantly.
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Accuracy and rounding
Use exact formulas for cooking, weather, and thermostat settings. Round the final value to the nearest degree when precision is not important.
Temperature conversions use scale formulas with offsets. The calculator keeps the formula result and rounds only what is displayed.
For weather or cooking, whole degrees are usually enough. For science or equipment settings, keep at least one decimal in Celsius.
How to convert Kelvin to Celsius
- Type the Kelvin value in the calculator.
- Keep Kelvin selected as the from unit and Celsius selected as the to unit.
- Use the instant result, or copy it with the copy button.
Kelvin to Celsius chart
| Kelvin | Celsius |
|---|---|
| -40 K | -313.15 °C |
| 0 K | -273.15 °C |
| 10 K | -263.15 °C |
| 20 K | -253.15 °C |
| 37 K | -236.15 °C |
| 100 K | -173.15 °C |
Formula
°C = K - 273.15
Example: 1 K = -272.15 °C.
Source
Temperature scale relationships from SI thermodynamic temperature definitions.
Common questions
How do I convert Kelvin to Celsius?
Enter the Kelvin value in the converter, or multiply by the factor shown in the formula. °C = K - 273.15.
What should I watch out for?
Temperature conversions use scale formulas, so they are not simple multipliers.
Where does this temperature conversion come from?
Temperature scale relationships from SI thermodynamic temperature definitions. ConverterBase uses stable definitions and fixed conversion factors, not live or rounded market data.