How to convert C to K
Use the formula K = °C + 273.15. Type any value in the box above and the answer updates instantly.
Convert Celsius to Kelvin instantly. Kelvin is the SI base unit of temperature.
Frequently asked questions
How do I convert Celsius to Kelvin?
Add 273.15. So 0°C is 273.15 K.
What is absolute zero in Celsius?
Absolute zero is −273.15°C, which is 0 K.
Why is there no degree symbol for Kelvin?
Kelvin is an absolute scale, so it uses the unit K without a degree symbol.