How to convert degrees Celsius to kelvins
Use the formula K = °C + 273.15.
Example: 25 °C = 25 + 273.15 = 298.15 K.
Degrees Celsius to kelvins table
| Degrees Celsius (°C) | Kelvins (K) |
|---|---|
| -40 | 233.15 |
| -20 | 253.15 |
| -10 | 263.15 |
| 0 | 273.15 |
| 5 | 278.15 |
| 10 | 283.15 |
| 15 | 288.15 |
| 20 | 293.15 |
| 21 | 294.15 |
| 25 | 298.15 |
| 30 | 303.15 |
| 35 | 308.15 |
| 37 | 310.15 |
| 40 | 313.15 |
| 50 | 323.15 |
| 60 | 333.15 |
| 80 | 353.15 |
| 100 | 373.15 |
| 180 | 453.15 |
| 200 | 473.15 |
| 220 | 493.15 |
| 250 | 523.15 |
About the units
- Degree Celsius (°C): Water freezes at 0 °C and boils at 100 °C at sea level; used for weather and cooking in almost every country.
- Kelvin (K): The SI temperature unit, starting at absolute zero (0 K = −273.15 °C); used in science.
Need the other direction? Convert kelvins to degrees Celsius.
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Open the unit converter Frequently asked questions
How many kelvins are in 0 °C?
0 °C = 273.15 K.
What is the formula for degrees Celsius to kelvins?
K = °C + 273.15.
How much is 25 °C in K?
25 °C = 298.15 K.