Celsius to Kelvin Conversion

to
°C
K

Kelvin to Celsius ►

Celsius

Celsius or centigrade is a unit of temperature.

The freezing/melting point of water is about zero degrees celsius (0 °C) at a pressure of 1 atmosphere.

The boiling point of water is about one hundred degrees celsius (100 °C) at a pressure of 1 atmosphere.

The exact values depend on the water composition (usually the amount of salt) and the air pressure.

Seawater contains salt and the freezing point is reduced below 0 °C.

When boiling water on a mountain above sea level the boiling point is reduced below 100 °C.

The symbol of Celsius degrees is °C.

Kelvin

Kelvin is a unit of temperature.

The freezing/melting point of water is about 273.15K at a pressure of 1 atmosphere.

The symbol of Kelvin unit is K.

How to convert Celsius to Kelvin

0 degrees Celsius is equal to 273.15 Kelvin:

0 °C = 273.15 K

The temperature T in Kelvin (K) is equal to the temperature T in degrees Celsius (°C) plus 273.15:

T(K) = T(°C) + 273.15

Example

Convert 20 degrees Celsius to Kelvin:

T(K) = 20°C + 273.15 = 293.15 K

Celsius to Kelvin conversion table

Celsius (°C) Kelvin (K) Description
-273.15 °C 0 K absolute zero temperature
-50 °C 223.15 K
-40 °C 233.15 K
-30 °C 243.15 K
-20 °C 253.15 K
-10 °C 263.15 K
0 °C 273.15 K freezing/melting point of water
10 °C 283.15 K
20 °C 293.15 K
21 °C 294.15 K room temperature
30 °C 303.15 K
37 °C 310.15 K average body temperature
40 °C 313.15 K
50 °C 323.15 K
60 °C 333.15 K
70 °C 343.15 K
80 °C 353.15 K
90 °C 363.15 K
100 °C 373.15 K boiling point of water
200 °C 473.15 K
300 °C 573.15 K
400 °C 673.15 K
500 °C 773.15 K
600 °C 873.15 K
700 °C 973.15 K
800 °C 1073.15 K
900 °C 1173.15 K
1000 °C 1273.15 K

Kelvin to Celsius ►