Degrees Celsius to kelvin
Type a value in °C to get it in K instantly.
That's about the temperature of boiling water. Water boils here at sea level.
Convert the other way: K to °C
What it means
How warm is that?
Reference temperatures are typical values at sea level. Water boils lower up a mountain, where the air pressure is less.
The math
How to convert °C to K
Add 273.15: K = °C + 273.15. The step size is the same, so only the starting point changes.
Example: 100 °C = 373.15 K.
Every unit
Your temperature in every unit
Tables
°C to K conversion table
| °C | K |
|---|---|
| -40 °C | 233.15 K |
| -20 °C | 253.15 K |
| -10 °C | 263.15 K |
| 0 °C | 273.15 K |
| 5 °C | 278.15 K |
| 10 °C | 283.15 K |
| 15 °C | 288.15 K |
| 20 °C | 293.15 K |
| 25 °C | 298.15 K |
| 30 °C | 303.15 K |
| 35 °C | 308.15 K |
| 37 °C | 310.15 K |
| 40 °C | 313.15 K |
| 50 °C | 323.15 K |
| 100 °C | 373.15 K |
| 180 °C | 453.15 K |
| 200 °C | 473.15 K |
| 220 °C | 493.15 K |
K to °C conversion table
| K | °C |
|---|---|
| -40 K | -313.15 °C |
| -20 K | -293.15 °C |
| -10 K | -283.15 °C |
| 0 K | -273.15 °C |
| 5 K | -268.15 °C |
| 10 K | -263.15 °C |
| 15 K | -258.15 °C |
| 20 K | -253.15 °C |
| 25 K | -248.15 °C |
| 30 K | -243.15 °C |
| 35 K | -238.15 °C |
| 37 K | -236.15 °C |
| 40 K | -233.15 °C |
| 50 K | -223.15 °C |
| 100 K | -173.15 °C |
| 180 K | -93.15 °C |
| 200 K | -73.15 °C |
| 220 K | -53.15 °C |
Quick answers
Quick answers
- How many K is 1 °C?
- 1 °C is 274.15 K.
- How many K is 10 °C?
- 10 °C is 283.15 K.
- How many K is 100 °C?
- 100 °C is 373.15 K.
The units
About these units
Degrees Celsius (°C)
Celsius puts 0 at the melting point of ice and 100 at the boiling point of water at sea level. Almost every country uses it for weather and cooking.
Kelvin (K)
The kelvin is the SI unit of temperature and starts at absolute zero, −273.15 °C. Kelvin steps match Celsius steps, and the degree sign is not used.
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