Celsius = Kelvin − 273.15. So 273.15 K = 0 °C. For K → °C subtract 273.15.

Absolute zero is 0 K. The Celsius scale is defined so that 0 °C = 273.15 K (water freezing).

Can I convert Celsius to Kelvin?

Yes. Select Kelvin → Celsius or Celsius → Kelvin in the converter.

Online Kelvin to Celsius Converter

Convert between Kelvin and Celsius. °C = K − 273.15. Bidirectional, client-side only.

ConvertKelvin (K)

What is the formula?: Celsius = Kelvin − 273.15. So 273.15 K = 0 °C. For K → °C subtract 273.15.
Why 273.15?: Absolute zero is 0 K. The Celsius scale is defined so that 0 °C = 273.15 K (water freezing).
Can I convert Celsius to Kelvin?: Yes. Select Kelvin → Celsius or Celsius → Kelvin in the converter.

Celsius to Fahrenheit Converter

Convert Celsius to Fahrenheit and Fahrenheit to Celsius instantly. Free temperature converter.

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