Free instant °C → K converter. No signup, no uploads — everything is calculated privately in your browser.
1 °C = 274.15 kelvin
Free and instant — every calculation runs in your browser. Nothing is uploaded.
0°C equals 273.15K; the formula is K = °C + 273.15.
K = °C + 273.15
Prefer to skip the math? Type any value in the converter above and it converts instantly.
| Celsius (°C) | Kelvin (K) |
|---|---|
| 1 °C | 274.15 K |
| 2 °C | 275.15 K |
| 5 °C | 278.15 K |
| 10 °C | 283.15 K |
| 25 °C | 298.15 K |
| 50 °C | 323.15 K |
| 100 °C | 373.15 K |
| 250 °C | 523.15 K |
| 500 °C | 773.15 K |
| 1,000 °C | 1,273.15 K |
Enter the value above and the result appears instantly — the calculation runs entirely in your browser. K = °C + 273.15.
K = °C + 273.15. To go back the other way, apply the inverse formula — for example 0°C = 273.15K.
1 °C = 274.15 K; 10 °C = 283.15 K; 100 °C = 373.15 K. Use the full conversion table below for more reference values.
At −40 degrees: −40°C and −40°F are the same temperature. That is the only point where the two scales intersect, because the scales have different zero points and step sizes.