kelvin to celsius converter
1 kelvin equals -272.15 Celsius. Conversions use °C = K × 1 − 273.15
K → -272.15 °C
°C = K × 1 − 273.15
Converter
Worked examples
- 1 K = -272.15 °C
- 2 K = -271.15 °C
- 5 K = -268.15 °C
- 10 K = -263.15 °C
- 100 K = -173.15 °C
kelvin to Celsius conversion table
| K | °C | Arithmetic |
|---|---|---|
| 273.15 K | 0 °C | × 1 − 273.15 |
| 293.15 K | 20 °C | × 1 − 273.15 |
| 300 K | 26.85 °C | × 1 − 273.15 |
| 310.15 K | 37 °C | × 1 − 273.15 |
| 373.15 K | 100 °C | × 1 − 273.15 |
| -40 K | -313.15 °C | × 1 − 273.15 |
| -20 K | -293.15 °C | × 1 − 273.15 |
| -10 K | -283.15 °C | × 1 − 273.15 |
| 0 K | -273.15 °C | × 1 − 273.15 |
| 10 K | -263.15 °C | × 1 − 273.15 |
| 15 K | -258.15 °C | × 1 − 273.15 |
| 20 K | -253.15 °C | × 1 − 273.15 |
| 25 K | -248.15 °C | × 1 − 273.15 |
| 30 K | -243.15 °C | × 1 − 273.15 |
| 32 K | -241.15 °C | × 1 − 273.15 |
| 35 K | -238.15 °C | × 1 − 273.15 |
| 37 K | -236.15 °C | × 1 − 273.15 |
| 40 K | -233.15 °C | × 1 − 273.15 |
| 50 K | -223.15 °C | × 1 − 273.15 |
| 68 K | -205.15 °C | × 1 − 273.15 |
| 70 K | -203.15 °C | × 1 − 273.15 |
| 75 K | -198.15 °C | × 1 − 273.15 |
| 80 K | -193.15 °C | × 1 − 273.15 |
| 90 K | -183.15 °C | × 1 − 273.15 |
| 98.6 K | -174.55 °C | × 1 − 273.15 |
| 100 K | -173.15 °C | × 1 − 273.15 |
How to convert K to °C
- Take your value in kelvin.
- Multiply by 1, then apply the offset -273.15
- That is your answer in Celsius — no rounding needed until you choose a display precision.
Related conversions
°C to K°C to °F°F to °CK to °Fall temperature units
Questions
How many Celsius in 1 kelvin?
Exactly -272.15 °C. The factor follows from the definitions of both units, not from a measurement, so it is exact.
How do I convert K to °C?
Multiply the kelvin figure by 1 and then apply the offset -273.15 — or use the converter above, which updates as you type.
Is K to °C the same as °C to K?
No — they are inverses. One K is -272.15 °C, while one °C is 274.15 K.
What is 273.15 K in °C?
273.15 K = 0 °C (see the value page for the full arithmetic).