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Speed Converter

Convert km/h to mph, metres per second, feet per second and knots.

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How to use the Speed Converter

  1. 1

    Enter a speed.

  2. 2

    Choose the units to convert between.

  3. 3

    Read the result or compare all units.

Frequently asked questions

How do I convert km/h to mph?

Divide by 1.609344. For example, 100 km/h is about 62.14 mph.

How precise is it?

Conversions use exact, internationally defined factors and show up to 10 significant digits.