Kelvin to Celsius

Convert kelvin (K) to degrees Celsius (°C).

Convert temperatures from Kelvin to Celsius in one step using °C = K − 273.15. Type a value in either box to convert both ways — the result updates as you type, entirely in your browser.

K
°C
Formula
°C = K − 273.15
KelvinCelsius
0 K-273.15 °C
273.15 K0 °C
300 K26.85 °C
310 K36.85 °C
373.15 K100 °C

Tip: type in either box to convert both ways, tap a row to reuse it, or use the copy button. Runs entirely in your browser — nothing is uploaded.

Runs entirely in your browser — nothing is uploaded.

How to use the kelvin to celsius

  1. 1Enter the value you want to convert.
  2. 2Read the converted result instantly — no button to press.
  3. 3Type in either box to convert both ways, or use the reference table for common values.

Frequently asked questions

How do you convert Kelvin to Celsius?

Use °C = K − 273.15. For example, 300K = 26.85°C.

What is 300K in Celsius?

300K is 26.85°C.

Related tools