Convert between Celsius, Fahrenheit, Kelvin and Rankine simultaneously, with all scales shown together and useful reference points for context.
Getting started
Enter a temperature in whichever scale you have.
Every other scale updates simultaneously.
Check the reference points to sense-check whether a figure is plausible.
Why it helps
Showing all scales at once removes any chance of converting in the wrong direction.
Handles the offset in Celsius and Fahrenheit correctly, which trips up simple multiplication.
Reference points give immediate intuition for unfamiliar figures.
In practice
Converting an oven temperature for a recipe from another country.
Understanding a weather forecast given in an unfamiliar scale.
Converting scientific data reported in Kelvin.
Everything people ask most about the temperature converter, answered plainly.
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