Enter a temperature to convert celsius to kelvin instantly. The box works both ways and shows the exact formula, so you learn the conversion, not just the answer.
K = °C + 273.15 · Open the full converter →
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The formula is K = °C + 273.15. For example, 25 °C = 298.15 K.
| Celsius (°C) | Kelvin (K) |
|---|---|
| -273.15 °C | 0 K |
| 0 °C | 273.15 K |
| 25 °C | 298.15 K |
| 37 °C | 310.15 K |
| 100 °C | 373.15 K |
| 500 °C | 773.15 K |
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