Celsius to Kelvin Converter
Formula
K = °C + 273.15
Add 273.15 to a Celsius temperature to convert to Kelvin. The Kelvin scale starts at absolute zero (0 K = −273.15°C).
Frequently Asked Questions
What is 0°C in Kelvin?
0°C = 273.15 K (the freezing point of water).
What is absolute zero?
0 K = −273.15°C — the coldest possible temperature where all molecular motion stops.