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Miles per hour to Kilometres per hour

One mile per hour is 1.609344 kilometres per hour. Speed units for driving, running and wind. A knot is one nautical mile per hour, which is why it does not line up neatly with mph.

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1.609344

1 mile per hour = 1.609344 kilometres per hour · open this conversion

Formula

kilometres per hour = miles per hour × 1.609344

Miles per hour to Kilometres per hour table

Miles per hourKilometres per hour
1 mph1.609344 km/h
5 mph8.04672 km/h
10 mph16.09344 km/h
15 mph24.14016 km/h
20 mph32.18688 km/h
25 mph40.2336 km/h
30 mph48.28032 km/h
35 mph56.32704 km/h
40 mph64.37376 km/h
45 mph72.42048 km/h
50 mph80.4672 km/h
55 mph88.51392 km/h
60 mph96.56064 km/h
65 mph104.6074 km/h
70 mph112.6541 km/h
80 mph128.7475 km/h
90 mph144.841 km/h
100 mph160.9344 km/h
120 mph193.1213 km/h
200 mph321.8688 km/h
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Other speed conversions

⇄ Kilometres per hour to Miles per hourMiles per hour to Metres per secondMiles per hour to KnotsMiles per hour to Feet per second

Frequently asked questions

▸How many kilometres per hour are in a mile per hour?
One mile per hour is 1.609344 kilometres per hour. kilometres per hour = miles per hour × 1.609344.
▸How do I convert miles per hour to kilometres per hour?
Multiply the number of miles per hour by 1.609344. For example, 10 mph × 1.609344 = 16.09344 km/h.
▸What is the difference between miles per hour and kilometres per hour?
Mile per hour (mph) and Kilometre per hour (km/h) both measure speed. Speed units for driving, running and wind. A knot is one nautical mile per hour, which is why it does not line up neatly with mph.
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