Celsius to Kelvin Converter

Enter a temperature in Celsius and instantly get the equivalent in Kelvin. The formula is K = °C + 273.15. Absolute zero (0 K) equals −273.15°C.

Common Celsius to Kelvin conversions

Celsius (°C) Kelvin (K)
-273.15 °C 0 K
-200 °C 73.15 K
-100 °C 173.15 K
-40 °C 233.15 K
0 °C 273.15 K
20 °C 293.15 K
37 °C 310.15 K
100 °C 373.15 K

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Frequently Asked Questions

What is the formula to convert Celsius to Kelvin?

Add 273.15. Formula: K = °C + 273.15.

What is 0°C in Kelvin?

0°C is 273.15 K (the freezing point of water).

What is absolute zero in Celsius?

Absolute zero is 0 K, which equals −273.15°C. This is the coldest possible temperature.