Convert Celsius to Kelvin
K = °C + 273.15. Add 273.15 to the Celsius temperature to get Kelvin.
Celsius
°C
Kelvin
K
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How to Convert Celsius to Kelvin
Add 273.15 to the Celsius temperature to get Kelvin.
Common Celsius to Kelvin Values
Frequently Asked Questions
What is 0°C in Kelvin?
0°C equals 273.15 Kelvin. This is the freezing point of water at standard pressure.
Why does the Kelvin scale start at absolute zero?
The Kelvin scale begins at absolute zero (-273.15°C), the coldest theoretically possible temperature where all molecular motion stops. This makes Kelvin essential for scientific calculations.
Do you say "degrees Kelvin"?
No. The correct usage is just "kelvin" (lowercase when used as a unit). You would say "300 kelvin" or "300 K", not "300 degrees Kelvin".