Degrees Celsius to kelvins
Type a value in either field to convert between degrees Celsius and kelvins.
1 °C = 274.15 K
How to convert degrees Celsius to kelvins
Formula: K = °C + 273.15
Example: 37 °C = 310.15 K.
Kelvin starts at absolute zero (−273.15 °C); one kelvin step is the same size as one degree Celsius.
Frequently asked questions
How many kelvins are in a degree Celsius?
1 °C equals 274.15 K.
How to convert degrees Celsius to kelvins
Formula: K = °C + 273.15
Are these conversions exact?
Yes. They use the international definitions of each unit; results are rounded only for display.
| degrees Celsius (°C) | kelvins (K) |
|---|---|
| -40 | 233.15 |
| -20 | 253.15 |
| -10 | 263.15 |
| -5 | 268.15 |
| 0 | 273.15 |
| 5 | 278.15 |
| 10 | 283.15 |
| 15 | 288.15 |
| 20 | 293.15 |
| 25 | 298.15 |
| 30 | 303.15 |
| 35 | 308.15 |
| 37 | 310.15 |
| 40 | 313.15 |
| 50 | 323.15 |
| 60 | 333.15 |
| 70 | 343.15 |
| 80 | 353.15 |
| 90 | 363.15 |
| 100 | 373.15 |
| 150 | 423.15 |
| 180 | 453.15 |
| 200 | 473.15 |
| 250 | 523.15 |