Unit Conversion

Convert length, mass, time, volume, speed and temperature units with the conversion factors written out. Try “convert 72 km/h to m/s” and see the unit cancelling.

Try an example:

How the Unit Conversion works

  1. Write the starting value with its unit (72 km/h).
  2. Multiply by conversion fractions so unwanted units cancel (× 1000 m/1 km × 1 h/3600 s).
  3. Multiply out and state the answer with the new unit (20 m/s).

Frequently asked questions

How do I convert km/h to m/s?

Divide by 3.6. For example 72 km/h ÷ 3.6 = 20 m/s.

How do I convert Celsius to Fahrenheit?

Multiply by 9/5 and add 32: °F = °C × 9/5 + 32.

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