◩ CONVERTERS Updated July 25, 2026

Temperature Converter

Celsius, Fahrenheit, Kelvin and Rankine in one view.

Temperature
Scale
Result
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How it works

The value is first converted to Celsius, then out to every other scale, so all four readings always agree with each other.

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Frequently asked questions

What is the formula for C to F?

Multiply by 9/5 and add 32. So 20 C becomes 68 F.

Why show Kelvin?

Kelvin is the SI unit used in science; 0 K is absolute zero, which is -273.15 C.

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