mph to kmph Converter

Convert miles per hour to kilometers per hour. 1 mph ≈ 1.609344 km/h.

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Speed Converter

Convert speed units instantly

1 mph = 1.60934 km/h
Live conversion result
How it works

Base unit: mps. Values convert via the base unit for this category.

Formula (scale-only): kmph = mph × 1.60934
That is, multiply by 1.60934 to convert mph to kmph.
Examples
  • 1 mph = 1.60934 kmph
  • 5 mph = 8.04672 kmph
Tips
  • 1 mph = 1.609344 km/h.

Popular conversions

mphkmph
11.60934
58.04672
1016.0934
100160.934

Examples

  • US highway speed:60 mph = 96.5606 kmph
  • 30 mph = 48.2803 kmph

How to convert

kmph = mph × 1.60934. Multiply the value in mph by 1.60934 to get kmph.

Related conversions

kph to mphmps to kmphknot to kmph

FAQs

  • What’s the mph to km/h factor?

    Multiply by 1.609344.

  • Why 1.609344?

    1 mile = 1.609344 km by international agreement.

  • How do I do the reverse?

    Divide by 1.609344 to get mph from km/h.