Celsius to Kelvin Converter
Convert degrees Celsius (°C) to kelvins (K). Type a number in either box and the result appears as you type.
Enter a number, for example 12.5
1 degree Celsius = 274.15 kelvins
Formula: K = °C + 273.15
How to convert degrees Celsius to kelvins
K = °C + 273.15
Add 273.15 to the temperature in Celsius.
Example: 100 °C = 373.15 K
Celsius to Kelvin conversion table
| Degree Celsius (°C) | Kelvin (K) |
|---|---|
| -40 | 233.15 |
| -30 | 243.15 |
| -20 | 253.15 |
| -10 | 263.15 |
| 0 | 273.15 |
| 10 | 283.15 |
| 20 | 293.15 |
| 25 | 298.15 |
| 30 | 303.15 |
| 37 | 310.15 |
| 40 | 313.15 |
| 50 | 323.15 |
| 60 | 333.15 |
| 80 | 353.15 |
| 100 | 373.15 |
| 150 | 423.15 |
| 180 | 453.15 |
| 200 | 473.15 |
| 250 | 523.15 |
About degrees Celsius and kelvins
Degree Celsius (°C)
Water freezes at 0 °C and boils at 100 °C at sea level. Used for weather and cooking in most of the world.
Kelvin (K)
The SI unit of temperature, starting at absolute zero (0 K is −273.15 °C). A change of 1 K equals a change of 1 °C. Used in science.
Frequently asked questions
How do I convert degrees Celsius to kelvins?
Add 273.15 to the temperature in Celsius. K = °C + 273.15
What is 100 °C in kelvins?
100 °C = 373.15 K.
What is 0 °C in kelvins?
0 °C = 273.15 K.