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Kelvin to Celsius

To convert kelvins to degrees Celsius, use °C = K − 273.15.

  • 0 K is -273.15 °C and 100 K is -173.15 °C.
  • For example, 273.15 kelvins is 0 degrees Celsius.
Conversion

Kelvin → Celsius

0

273.15 kelvin equals this many celsius

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Common kelvins to degrees Celsius conversions
Kelvin (K)Celsius (°C)
0-273.15
50-223.15
77-196.15
100-173.15
173.15-100
200-73.15
233.15-40
250-23.15
273.150
288.1515
293.1520
298.1525
310.1537
373.15100
500226.85
1,000726.85

About kelvins and degrees Celsius

Subtract 273.15 to go from Kelvin to Celsius. Scientific data often uses Kelvin: 77 K is the boiling point of liquid nitrogen, 273.15 K is the freezing point of water, and 298.15 K (25 °C) is the standard reference temperature in chemistry.

Frequently asked questions

What is the formula to convert Kelvin to Celsius?
°C = K − 273.15. For example, 273.15 K works out to 0 °C.
How do I convert 273.15 kelvins to degrees Celsius?
Apply °C = K − 273.15 to 273.15 K: the result is 0 °C.
What is room temperature in Kelvin?
About 293–298 K. 20 °C is 293.15 K and 25 °C — the chemistry standard — is 298.15 K.