Kelvin to Degree Celsius Converter

Type a value — the answer appears instantly. 1 K = -272.15 °C.

შემოწმებულია OmniCalc-ის გუნდის მიერმეთოდი დამოწმებულია 2026-07-01

From (kelvins)

To (degrees Celsius)

Result

-272.15 degrees Celsius

= -457.87 °F= 1.8 °R

Formula: °C = K − 273.15

Kelvin to Degree Celsius formula

°C = K − 273.15

Convert 5 kelvins to degrees Celsius

Start with 5 K.
Apply the formula °C = K − 273.15.
So 5 K = -268.15 °C.

Kelvin to Degree Celsius conversion table

Kelvin to Degree Celsius conversion table
Kelvins (K)	Degrees Celsius (°C)
-40 K	-313.15 °C
-30 K	-303.15 °C
-20 K	-293.15 °C
-10 K	-283.15 °C
0 K	-273.15 °C
5 K	-268.15 °C
10 K	-263.15 °C
15 K	-258.15 °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
39 K	-234.15 °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
200 K	-73.15 °C

Unit definitions

What is a kelvin?

The kelvin is the SI base unit of thermodynamic temperature, redefined in 2019 via the Boltzmann constant. Its zero point is absolute zero, the coldest possible temperature, and it uses the same degree size as Celsius. It is standard in science and engineering.

What is a degree Celsius?

The degree Celsius is the everyday metric temperature unit, defined so that water freezes at 0 °C and boils at 100 °C at standard pressure. It shares its degree size with the kelvin and is offset by exactly 273.15. It is the standard scale in almost every country except the United States.

Frequently asked questions

What is the formula to convert kelvins to degrees Celsius?

°C = K − 273.15. For example, 20 K equals -253.15 °C.

What is 0 K in degrees Celsius?

0 K equals -273.15 °C.

Is this kelvin to degree Celsius converter free?

Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.

Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.