Conversion
Celsius to Kelvin Converter
Convert Celsius to Kelvin instantly with a simple, free calculator.
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Formula
Kelvin = Celsius + 273.15. Add 273.15 to the Celsius value.
How it works
Enter a Celsius temperature. The calculator adds 273.15, the offset between the Celsius zero point and absolute zero. A result of 0 K would mean absolute zero, reached only at −273.15 °C.
FAQs
What is 0 °C in Kelvin?
0 °C equals 273.15 K.
Can Kelvin be negative?
No. Zero kelvin is absolute zero, the lowest possible temperature.
Do Kelvin degrees use the ° symbol?
No. The unit is written as K, not °K, by modern convention.