Updated 2026 · By ToolFern

Kelvin to Celsius Converter

Convert kelvin to celsius (K to °C) instantly. Type a value and get the answer live, or use the table below. 1 K = -272.15 °C.

K
=
°C

How to convert kelvin to celsius

To convert kelvin to celsius, use the temperature formula °C = K − 273.15. Temperature scales do not share a zero point, so you cannot just multiply, you apply the formula.Enter any value in the box above and the answer updates instantly, no sign-up and nothing leaves your browser.

Kelvin to Celsius conversion table

Kelvin (K)Celsius (°C)
1 K-272.15 °C
2 K-271.15 °C
3 K-270.15 °C
5 K-268.15 °C
10 K-263.15 °C
20 K-253.15 °C
25 K-248.15 °C
50 K-223.15 °C
100 K-173.15 °C
1,000 K726.85 °C

Frequently asked questions

How many celsius in a kelvin?

1 K = -272.15 °C. So 1 kelvin equals -272.15 celsius.

What is the K to °C formula?

°C = K − 273.15.

Does it work in reverse?

Yes. Use the Celsius to Kelvin converter to go the other way.

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