Kelvin to Celsius
Convert K to °C instantly — free, no sign-up.
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About Kelvin (K)
Kelvin is the SI base unit of temperature, starting at absolute zero (−273.15°C), used throughout science and engineering.
About Celsius (°C)
Celsius is the metric scale where water freezes at 0° and boils at 100°, used for everyday temperature almost everywhere outside the US.
How to convert K to °C
- Enter the temperature in K in the box above.
- The °C equivalent updates instantly.
- Use the swap button to convert °C back to K just as easily.