Kelvin to Celsius (K to °C)

Convert kelvin to degrees Celsius instantly with the formula °C = K − 273.15. Includes worked examples and a full K to °C table.

How to convert kelvin to degrees Celsius

The two scales have different zero points, so you need a formula rather than a single factor:

°C = K − 273.15

Examples

  • 0 − 273.15 = −273.15 °C
  • 273.15 − 273.15 = 0 °C
  • 300 − 273.15 = 26.85 °C

K to °C conversion table

Kelvin (K)Degrees Celsius (°C)
−40 K−313.15 °C
−20 K−293.15 °C
−10 K−283.15 °C
0 K−273.15 °C
10 K−263.15 °C
20 K−253.15 °C
25 K−248.15 °C
30 K−243.15 °C
35 K−238.15 °C
36.6 K−236.55 °C
37 K−236.15 °C
38 K−235.15 °C
40 K−233.15 °C
50 K−223.15 °C
60 K−213.15 °C
80 K−193.15 °C
100 K−173.15 °C
150 K−123.15 °C
180 K−93.15 °C
200 K−73.15 °C
250 K−23.15 °C

What is a kelvin?

The kelvin is the SI unit of temperature. It starts at absolute zero (0 K = −273.15 °C) and uses the same step size as Celsius.

What is a degree Celsius?

The Celsius scale sets water's freezing point at 0 °C and boiling point at 100 °C at sea level. It is used in India and most of the world.

Related conversions

Degrees Celsius to kelvinDegrees Celsius to degrees FahrenheitDegrees Fahrenheit to degrees CelsiusDegrees Fahrenheit to kelvinKelvin to degrees FahrenheitAll temperature units

Frequently asked questions

How do I convert kelvin to degrees Celsius?

Use the formula °C = K − 273.15.

What is 273.15 K in °C?

273.15 K = 0 °C.

What is 300 K in °C?

300 K = 26.85 °C.