Unit Conversion Calculators

Kelvin Converter

Convert a temperature in Kelvin to both Celsius and Fahrenheit.

Celsius —

Fahrenheit —

About the Kelvin Converter

Kelvin is the SI base unit of temperature, starting at absolute zero (the coldest possible temperature). Unlike Celsius and Fahrenheit, it has no negative values.

Formula: °C = K − 273.15 · °F = (K − 273.15) × 9/5 + 32

Kelvin is used extensively in science, physics and astronomy where absolute temperature matters.