RunTheTests

Unit Converter

Convert length, weight, temperature and volume between common units.

System verdict

RESULT

100 C = 212 F

Temperature scales have different zero points, so conversion uses formulas rather than a simple ratio — you cannot just multiply.

Diagnostic telemetry
Result
212 F
Category
temperature

What this cannot tell you

  • Converts between units of the same kind — length to length, and so on. Mixing kinds is rejected.
  • US customary volumes are used (a US cup and gallon differ from imperial).

How this calculation works

Pick a value and two units of the same kind. Length, weight and volume convert through a common base by ratio; temperature converts through explicit formulas, because its scales have different zero points.

What the results mean

Same kind only
You can convert metres to feet, but not metres to kilograms. Mixing kinds is rejected rather than producing nonsense.
US volumes
Cups, pints and gallons here are US customary, which differ from imperial — a US gallon is about 3.79 litres, an imperial gallon 4.55.

Frequently asked questions

Why can’t I just multiply Celsius to get Fahrenheit?

Because temperature scales start at different points. 0°C is 32°F, not 0°F, so there is an offset as well as a scale factor. The formula is °F = °C × 9/5 + 32. A converter that only multiplied would be wrong at every temperature except one.

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