Kilometers Per Hour to Miles Per Hour Converter
How to convert kilometers per hour to miles per hour
miles per hour = kilometers per hour ÷ 1.609344
To convert kilometers per hour to miles per hour, divide the number of kilometers per hour by 1.609344.
1 km/h = 0.621371192 mph
Examples
- A common highway speed limit: 100 km/h ÷ 1.609344 = 62.1371192 mph
- 50 km/h ÷ 1.609344 = 31.0685596 mph
Good to know
One mile per hour is exactly 1.609344 km/h, so 100 km/h is about 62 mph and 60 mph is about 97 km/h. For a quick estimate, multiply km/h by 0.6 or mph by 1.6.
Kilometers per hour to miles per hour conversion table
| Kilometers per hour (km/h) | Miles per hour (mph) |
|---|---|
| 10 km/h | 6.21371192 mph |
| 20 km/h | 12.4274238 mph |
| 30 km/h | 18.6411358 mph |
| 40 km/h | 24.8548477 mph |
| 50 km/h | 31.0685596 mph |
| 60 km/h | 37.2822715 mph |
| 70 km/h | 43.4959835 mph |
| 80 km/h | 49.7096954 mph |
| 90 km/h | 55.9234073 mph |
| 100 km/h | 62.1371192 mph |
| 110 km/h | 68.3508311 mph |
| 120 km/h | 74.5645431 mph |
| 130 km/h | 80.778255 mph |
| 150 km/h | 93.2056788 mph |
| 200 km/h | 124.274238 mph |
| 250 km/h | 155.342798 mph |
| 300 km/h | 186.411358 mph |
Unit definitions
- Kilometer per hour (km/h)
- A kilometer per hour is a speed of one kilometer traveled in one hour, exactly 1/3.6 meters per second. It is the unit on road signs and speedometers in most countries.
- Mile per hour (mph)
- A mile per hour is a speed of one international mile (1,609.344 meters) traveled in one hour, exactly 0.44704 meters per second. It is the unit on road signs in the United States and the United Kingdom.