Unit Conversion

Convert mph to km/h

Convert miles per hour to kilometers per hour with the formula, example, and full speed converter.

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miles per hour to kilometers per hour formula

km/h = mph x 1.609344

60 mph x 1.609344 = 96.56 km/h

Use this quick reference when you only need the formula. For repeated conversions, decimal handling, and related unit types, use the full converter tool.

How to convert miles per hour to kilometers per hour

  1. 1Write the value you want to convert in miles per hour.
  2. 2Use the conversion formula: km/h = mph x 1.609344.
  3. 3Round the final value based on how precise your use case needs to be.