Celsius to Kelvin Converter
Convert Celsius to Kelvin and back, plus Fahrenheit, for science and engineering.
Independently verified for accuracy
Calculator by Toolsloft ↗- Result
- 274.15 Kelvin (K)
- Conversion
- 1 Celsius (C) = 274.15 Kelvin (K)
Convert Celsius to Kelvin, the absolute temperature scale used in physics and chemistry. Enter a Celsius reading and get Kelvin, or swap the direction. Fahrenheit is included for convenience.
How this is calculated
The Kelvin scale has the same size degree as Celsius but starts at absolute zero. Kelvin equals Celsius plus 273.15, so 0 degrees Celsius is 273.15 Kelvin. Kelvin cannot go below zero, which is absolute zero.
How to use
- Enter the temperature in Celsius.
- Keep Celsius to Kelvin, or press Swap for Kelvin to Celsius.
- Read the result in Kelvin.
Examples
- Freezing point:
0 C = 273.15 K - Room temperature:
25 C = 298.15 K - Boiling point:
100 C = 373.15 K
FAQ
- How do I convert Celsius to Kelvin?
- Add 273.15 to the Celsius value. So 20 degrees Celsius is 293.15 Kelvin.
- Why does Kelvin have no negative values?
- Kelvin starts at absolute zero, the lowest possible temperature, so values below zero are not physically meaningful.