How to convert kilometers per hour to miles per hour

1 kilometer per hour equals 0.621371 miles per hour, so you divide by 1.60934:

mph = km/h ÷ 1.60934

Example

Let's convert 100 kilometers per hour to miles per hour:

100 km/h = 62.1371 mph

Going the other way

1 mile per hour = 1.60934 kilometers per hour. Use our miles per hour to kilometers per hour converter.

What is a kilometer per hour?

Kilometers per hour is the speed unit used on roads in most countries.

What is a mile per hour?

Miles per hour is the speed unit on US and UK roads and car speedometers.