Celsius to Kelvin
Convert Celsius to Kelvin and back. Used in science and for light colour temperature.
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Common values
Formula
K = °C × 1 + 273.15
Kelvin is Celsius plus 273.15. Nothing is colder than 0 K (−273.15 °C).
Frequently asked questions
QHow many K is 1 °C?
1 °C is 274.15 K, and 10 °C is 283.15 K. Type any value in the box above to convert instantly.
QAnd how many °C is 1 K?
1 K is -272.15 °C. This converter works both ways, so typing in the right box updates the left one.
QWhere is this unit used?
Kelvin is Celsius plus 273.15. Nothing is colder than 0 K (−273.15 °C).
Other converters
Traditional units (geun, doe, majigi and so on) vary by region and product.