Celsius to Kelvin Converter

Convert Celsius to Kelvin (°C to K) instantly. 1 degree Celsius = 274.15 K. Includes the formula and a conversion table.

K = °C + 273.15

How to convert Celsius to Kelvin

K = °C + 273.15

The relationship between Celsius and Kelvin is not a simple multiplication, so apply the formula above. Example: 25 °C = 298.15 K.

Celsius and Kelvin differ by exactly 273.15. A Fahrenheit degree is 5/9 of a Celsius degree and 32 °F is the freezing point of water (0 °C).

Celsius to Kelvin conversion table

Celsius (°C)Kelvin (K)
-40 °C233.15 K
-20 °C253.15 K
-10 °C263.15 K
0 °C273.15 K
10 °C283.15 K
20 °C293.15 K
25 °C298.15 K
30 °C303.15 K
37 °C310.15 K
50 °C323.15 K
100 °C373.15 K
200 °C473.15 K

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Frequently asked questions

How many Kelvin are in 1 degree Celsius?

1 degree Celsius is equal to 274.15 K.

How do I convert Celsius to Kelvin?

Use the formula K = °C + 273.15. For example, 25 °C is 298.15 K.

How do I convert Kelvin back to Celsius?

Use the formula °C = K − 273.15, or open the Kelvin to Celsius converter.

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