SpeedKilometers Per Hour to miles per hour
1 kilometer per hour = 0.621371 miles per hour.
1 kilometer per hour = 0.621371 miles per hour. Multiply by 0.621371.
Common amounts
| km/h | mph |
|---|---|
| 1 km/h | 0.621371 mph |
| 10 km/h | 6.2137 mph |
| 50 km/h | 31.0686 mph |
| 60 km/h | 37.2823 mph |
| 100 km/h | 62.1371 mph |
How it works
How to convert kilometers per hour to miles per hour
mph = km/h × 0.621371.
Worked examples: 10 kilometers per hour = 6.2137 miles per hour; 100 kilometers per hour = 62.1371 miles per hour.
About kilometers per hour and miles per hour
Kilometers per hour is the speed unit on road signs in most of the world. Miles per hour is used on road signs in the US and the UK.
When you'd convert kilometers per hour to miles per hour
Driving abroad or reading car specs: 100 km/h is about 62 mph.
Common mistake: rounding the factor to 1.6 or 0.6 too early; at motorway speeds that is off by a few km/h.
To go the other way, use the miles per hour to kilometers per hour converter.
The converter on this page works out the answer in your browser as you type, and shows the factor so you can check it by hand.
Questions
How do I convert kilometers per hour to miles per hour?
1 kilometer per hour = 0.621371 miles per hour. Multiply by 0.621371.
What does the Converter : Units app add?
The same conversion, plus history, a constants library, and the rest of the unit categories on the phone.