TemperatureDegrees Celsius to kelvin
K = °C + 273.15.
0 °C = 273.15 K.
Common values
| °C | K |
|---|---|
| 0 °C | 273.15 K |
| 20 °C | 293.15 K |
| 37 °C | 310.15 K |
| 100 °C | 373.15 K |
How it works
How to convert degrees Celsius to kelvin
K = °C + 273.15.
About degrees Celsius and kelvin
On the Celsius scale water freezes at 0 °C and boils at 100 °C at sea level. The kelvin starts at absolute zero; 0 K is −273.15 °C, and one kelvin step equals one Celsius degree.
When you'd convert degrees Celsius to kelvin
Science classes and colour temperature use kelvin. Just add 273.15; there is no multiplying and no degree sign.
Common mistake: temperature scales have different zero points, so you cannot just multiply; a change of 1 °C is a change of 1.8 °F, but 1 °C is not 1.8 °F.
To go the other way, use the kelvin to degrees Celsius converter.
The converter on this page works out the answer in your browser as you type, and shows the factor so you can check it by hand.
Questions
What is the formula for celsius to kelvin?
K = °C + 273.15
What does the Converter : Units app add?
The same formula, plus the other unit categories, history, and a constants reference.