Convert Kelvin to Celsius
Unit definitions
Kelvin
Kelvin is the standard unit of thermodynamic temperature in the International System of Units (SI). Kelvin generally has no negative values as it starts at absolute zero, which is the lowest temperature theoretically possible.
Celsius
Celsius is defined by the temperatures at which water freezes ($0 \ \text{°C}$) and boils ($100 \ \text{°C}$) at standard atmospheric pressure. Temperature in Celsius is equal to $\text{K} - 273.15$.
How to convert Kelvin to Celsius
$$\text{Temperature}_{\text{°C}} = - 273.15 + \text{Temperature}_{\text{K}}$$
Examples
Example 1
Convert $35.0\ \text{K}$ to $\text{°C}$.
$$\text{Temperature}_{\text{°C}} = - 273.15 + 35.0$$
$$\text{Temperature}_{\text{°C}} = -238.15$$
$$\therefore \ 35.0\ \text{K} = -238.15 \ \text{°C}$$
Example 2
Convert $80.0\ \text{K}$ to $\text{°C}$.
$$\text{Temperature}_{\text{°C}} = - 273.15 + 80.0$$
$$\text{Temperature}_{\text{°C}} = -193.15$$
$$\therefore \ 80.0\ \text{K} = -193.15 \ \text{°C}$$
Example 3
Convert $115.0\ \text{K}$ to $\text{°C}$.
$$\text{Temperature}_{\text{°C}} = - 273.15 + 115.0$$
$$\text{Temperature}_{\text{°C}} = -158.15$$
$$\therefore \ 115.0\ \text{K} = -158.15 \ \text{°C}$$
Example 4
Convert $135.0\ \text{K}$ to $\text{°C}$.
$$\text{Temperature}_{\text{°C}} = - 273.15 + 135.0$$
$$\text{Temperature}_{\text{°C}} = -138.15$$
$$\therefore \ 135.0\ \text{K} = -138.15 \ \text{°C}$$
Example 5
Convert $160.0\ \text{K}$ to $\text{°C}$.
$$\text{Temperature}_{\text{°C}} = - 273.15 + 160.0$$
$$\text{Temperature}_{\text{°C}} = -113.15$$
$$\therefore \ 160.0\ \text{K} = -113.15 \ \text{°C}$$
Kelvin to Celsius conversion table
Convert Kelvin to other Temperature units
| Kelvin [K] | Other unit |
|---|---|
| 1 | -457.87 Fahrenheit [°F] |
| 1 | 1.8 Rankine [°R] |