# Celsius to Kelvin Conversion – °C to K

LAST UPDATE: October 26th, 2020

## Formula – How to convert Celsius to Kelvin

K = °C + 273.15

Add 273.15 to the temperature in Celsius.

### Example

Find 30°C in Kelvin:

30 + 273.15 = 303.15K

## What is the difference between Celsius and Kelvin?

Celsius and Kelvin both operate on the same interval – an increase in one degree of one is the same as an increase of one degree in the other.

Celsius is benchmarked between the freezing point of water (0°C, or 273.15K) and the boiling point of water (100°C, or 373.15K).

Kelvin is benchmarked from the temperature Absolute 0, the coldest temperature possible in the universe.

Unlike Celsius, Fahrenheit, and Rankine, Kelvin does not use a degree scale (°). The units of temperature in kelvin are simply noted as “K” not “°K”

## Who uses Celsius and Kelvin?

Celsius is a common temperature scale (along with Fahrenheit) for temperature measurements, specifically weather.

Kelvin is used in the scientific community, specifically the physical sciences.