Kelvin to Celsius (K to °C) Converter
Formula: °C = K - 273.15. Absolute zero = 0 K = -273.15°C. Water freezes at 273.15 K = 0°C.
Formula:°C = K - 273.15
⇄ Switch to Celsius To KelvinKelvin to Celsius — common values
-40 K-313.15 °C
0 K-273.15 °C
20 K-253.15 °C
37 K-236.15 °C
100 K-173.15 °C
200 K-73.15 °C
500 K226.85 °C
How to convert Kelvin To Celsius
To convert kelvin to celsius, use the formula: °C = K - 273.15. Enter any value in the input field above and the result appears instantly. Click the ⇄ button or use the “Switch to Celsius To Kelvin” link to reverse the conversion.
All conversions use precise mathematical constants validated against international SI standards (NIST and ISO 80000) and are accurate to 8 significant figures.
Frequently Asked Questions
What is the formula to convert Kelvin To Celsius?
°C = K - 273.15. Formula: °C = K - 273.15. Absolute zero = 0 K = -273.15°C. Water freezes at 273.15 K = 0°C.
Is this converter free?
Yes — completely free, no registration required. Works instantly in your browser.
How do I convert Celsius To Kelvin?
Use the Celsius To Kelvin converter or click the ⇄ switch button above.
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