CCalclabhub

Temperature

Celsius to kelvin

The degree sizes are identical, so this is a pure shift to absolute zero.

The Formula

K = °C + 273.15

The degree sizes are identical, so this is a pure shift to absolute zero.

SymbolMeaning
°CDegrees Celsius
KKelvin

What Each Symbol Means

°C°C

Degrees Celsius

The temperature on the Celsius scale.

KK

Kelvin

The same temperature measured from absolute zero.

See It Worked With Real Numbers

A formula on its own does not tell you which number goes where. The how to convert temperature units page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.

Where This Formula Appears

This equation is the working core of How To Convert Temperature Units, filed under Unit Conversion. Every number the guide produces comes from substituting into this one line.