Celsius to Kelvin
Convert temperatures from Celsius to Kelvin with visual comparison
0°C + 273.15 = 273.15 K
Kelvin (K)
273.15 K
K = °C + 273.15
About this calculator
Convert Celsius to Kelvin by adding 273.15 to any Celsius temperature. Kelvin is the SI base unit for temperature used in scientific research, where 0 K represents absolute zero — the lowest possible temperature.
Common examples
- 0°C = 273.15 K — freezing point of water
- 100°C = 373.15 K — boiling point of water
- -273.15°C = 0 K — absolute zero
- 25°C = 298.15 K — standard room temperature
- 37°C = 310.15 K — human body temperature