Kilometer Per Hour to Mile Per Hour Converter
Convert kilometer per hour to mile per hour instantly.
Standard speed units
Fun comparisons
How to convert kilometer per hour to mile per hour
Enter your speed in kilometer per hour and see the result in mile per hour instantly. Real-world reference points: a typical motorway limit of 100 km/h equals 62 mph, and the speed of sound is about 343 m/s.
Kilometers per hour is the standard speed unit in most countries; miles per hour is used in the US and UK. This conversion is commonly needed for vehicle speedometers and road signs.
Need the opposite direction? Convert mile per hour to kilometer per hour just as easily, or explore all our speed conversions.
Common kilometer per hour to mile per hour conversions
| Kilometer Per Hour (km/h) | Mile Per Hour (mph) |
|---|---|
| 1 | 0.621371 |
| 5 | 3.10686 |
| 10 | 6.21371 |
| 25 | 15.5343 |
| 50 | 31.0686 |
| 100 | 62.1371 |
| 500 | 310.686 |
| 1000 | 621.371 |
Frequently asked questions
1 kilometer per hour equals 0.621371 mile per hour.
Multiply by 0.621371. For example, 5 km/h = 3.10686 mph.
100 km/h equals approximately 62.14 mph.
1 mile per hour equals 1.60934 kilometer per hour.
100 kilometer per hour equals 62.1371 mile per hour.