Temperature
Kelvin back to Celsius
The exact inverse of the direct rule. Subtracting 273.15 from 298.15 K returns 25 C with nothing left over.
The Formula
C = K - 273.15
The exact inverse of the direct rule. Subtracting 273.15 from 298.15 K returns 25 C with nothing left over.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| K | Reading in kelvin | kelvin | Subtract the offset to return to the everyday scale. |
| C | Reading in degrees Celsius | degrees Celsius | For 298.15 K this returns 25 C exactly. |
What Each Symbol Means
Kkelvin
Reading in kelvin
Subtract the offset to return to the everyday scale.
Cdegrees Celsius
Reading in degrees Celsius
For 298.15 K this returns 25 C exactly.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to convert celsius to kelvin 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 Celsius To Kelvin, filed under Unit Conversion. Every number the guide produces comes from substituting into this one line.