Kelvin to Celsius
Convert temperatures between Celsius, Fahrenheit and Kelvin instantly with exact formulas.
Result
This page opens the temperature converter preset to Kelvin → Celsius. The exact relation is °C = K − 273.15 — subtract the offset and you are done, because a kelvin and a Celsius degree are the same size; only the zero points differ.
Anchors: 0 K is absolute zero, −273.15 °C. 273.15 K = 0 °C, 293.15 K = 20 °C (room temperature), 310.15 K = 37 °C (body temperature), 373.15 K = 100 °C. Cosmic microwave background radiation sits at 2.7 K ≈ −270.5 °C; the Sun's surface is about 5,778 K ≈ 5,505 °C.
This direction appears in physics problems, chemistry data tables and spec sheets — note that color temperature of light (5600 K daylight) is a spectral description, not a heat you can touch. Enter a Kelvin value to see Celsius immediately, or swap to go the other way.