Convert kelvins to celsiuss
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Show this value in all 8 temperature units
- Kelvins K 1
- Celsiuss °C -272.15
- Fahrenheits °F -457.87
- Rankines °R 1.8
- Réaumurs °Ré -217.72
- Delisles °De 558.225
- Newton scales °N -89.8095
- Rømers °Rø -135.378 75
Every row is Kelvin (K) converted through the kelvin, in exact rational arithmetic.
How to convert kelvins to celsiuss
The two scales have different zero points, so you cannot just multiply — you shift the zero as well. Enter a value above and the exact arithmetic is done for you.
The exact factor is -272.15 — as a fraction, -5443/20.
Kelvin: The SI base unit. Absolute zero is 0 K; there are no negative kelvins.
Kelvin to Celsius conversion table
| Kelvins (K) | Celsiuss (°C) |
|---|---|
| 0 K | -273.15 |
| 10 K | -263.15 |
| 20 K | -253.15 |
| 25 K | -248.15 |
| 30 K | -243.15 |
| 37 K | -236.15 |
| 50 K | -223.15 |
| 100 K | -173.15 |
| 200 K | -73.15 |
Celsius to Kelvin conversion table
| Celsiuss (°C) | Kelvins (K) |
|---|---|
| -40 °C | 233.15 |
| -20 °C | 253.15 |
| -10 °C | 263.15 |
| 0 °C | 273.15 |
| 10 °C | 283.15 |
| 20 °C | 293.15 |
| 25 °C | 298.15 |
| 30 °C | 303.15 |
| 37 °C | 310.15 |
| 50 °C | 323.15 |
| 100 °C | 373.15 |
| 200 °C | 473.15 |
Frequently asked
How many celsiuss are in a kelvin?
One kelvin equals -272.15 celsiuss (K → °C). That figure is exact, not rounded.
How do you convert kelvins to celsiuss?
The two scales have different zero points, so you cannot just multiply — you shift the zero as well. Enter a value above and the exact arithmetic is done for you.
What is 1 °C in kelvins?
One celsius is 274.15 kelvins.
What is 10 K in °C?
10 K = -263.15 °C.
What exactly is a kelvin?
The SI base unit. Absolute zero is 0 K; there are no negative kelvins.