Mile per hour to Kilometer per hour

Convert mile per hour to kilometer per hour with the exact factor, a quick reference table and three worked examples. Everything runs in your browser.

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FromMile per hour (mph)
ToKilometer per hour (km/h)
1.6093km/h
km/h = mph × 1.6093

Conversion formula

km/h = mph × 1.6093

The conversion factor is 1.6093; multiply directly.

Common conversions

Mile per hour (mph) Kilometer per hour (km/h)
1 1.6093
5 8.0467
10 16.0934
20 32.1869
50 80.4672
100 160.9344

Worked examples

1

1 mph = 1.6093 km/h

2

20 mph = 32.1869 km/h

3

100 mph = 160.9344 km/h

Frequently asked questions

How many kilometer per hour are in one mile per hour?
One mile per hour equals 1.6093 kilometer per hour. Use km/h = mph × 1.6093 for any value.
What is the conversion formula?
The formula is km/h = mph × 1.6093. Here mph is the input unit and km/h is the output unit.
Is the result rounded?
The calculation uses the standard factor 1.6093. Displayed values keep up to six significant digits.

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