Temperature Converter

Convert the three most common temperature scales.

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Calculation details

All calculations run locally in your browser. No data is stored.

Input temperature20

Uses the exact Celsius, Fahrenheit, and kelvin scale relationships. Values below absolute zero are not physically meaningful.

Frequently asked questions

What is absolute zero?

Absolute zero is 0 K, equal to −273.15 °C or −459.67 °F.

Is kelvin written with a degree symbol?

No. The SI unit is written as kelvin or K without a degree symbol.