Kelvin to Celsius
Convert kelvins to degrees Celsius
"Kelvin to Celsius" Calculator
How to convert kelvins to degrees Celsius
Worked example: 0 K = -273.15 °C
0 K − 273.15 = -273.15 °C
Rule: °C = K − 273.15 — the zeros are 273.15 apart: water freezes at 273.15 K = 0 °C, and a kelvin is the same step as a degree Celsius.
| K | °C | Usually |
|---|---|---|
| 0 K | -273.15 °C | absolute zero |
| 1 K | -272.15 °C | — |
| 25 K | -248.15 °C | — |
| 100 K | -173.15 °C | — |
| 220 K | -53.15 °C | — |
| 273 K | -0.15 °C | weather |
| 273.15 K | 0 °C | weather |
| 293.15 K | 20 °C | weather |
| 298.15 K | 25 °C | weather |
| 300 K | 26.85 °C | weather |
| 310.15 K | 37 °C | body temperature |
| 373.15 K | 100 °C | — |
| 1,000 K | 726.85 °C | light color |
See Also
- Celsius to Kelvin - Convert degrees Celsius to kelvins
- Kelvin to Fahrenheit - Convert kelvins to degrees Fahrenheit
- Celsius to Fahrenheit - Convert degrees Celsius to degrees Fahrenheit
FAQ
What is the formula to convert Kelvin to Celsius?
°C = K − 273.15: subtract 273.15 from the temperature in kelvins. A change of 1 K is the same as a change of 1 °C.
What is 0 Kelvin in Celsius?
0 K = -273.15 °C — absolute zero, the lowest possible temperature.
Why is the kelvin written without a degree sign?
Since 1967 the kelvin has been an SI unit in its own right, not a degree: write 300 K and say “300 kelvins”; only °C and °F keep the degree sign.