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Temperature Converter

Celsius, Fahrenheit and Kelvin - all three at once.

How to use

  1. Enter the temperature.
  2. Pick which scale it's in.
  3. Read all three scales at once.

Frequently asked questions

What's the quick C to F trick?

Double it and add 30 for a rough answer (exact: ×1.8 + 32). 20°C ≈ 70°F (exactly 68°F).

What is Kelvin for?

The scientific absolute scale: 0 K is absolute zero (−273.15 °C), so it never goes negative - used in physics and chemistry.

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