Convert Kilometer per hour to Mile per hour
Convert Kilometer per hour to Mile per hour instantly. 1 km/h = 0.621371 mph. Formula, worked examples and a quick reference table.
Last updated
One kilometer per hour equals 0.621371 mile per hour. To convert any number of kilometer per hours to mile per hours, multiply by 0.62137119.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Kilometer per hour to Mile per hour formula
To go the other way, use kilometer per hour = mile per hour ÷ 0.62137119.
Kilometer per hour to Mile per hour conversion table
| Kilometer per hour | Mile per hour |
|---|---|
| 1 km/h | 0.6214 mph |
| 2 km/h | 1.2427 mph |
| 3 km/h | 1.8641 mph |
| 5 km/h | 3.1069 mph |
| 10 km/h | 6.2137 mph |
| 20 km/h | 12.4274 mph |
| 25 km/h | 15.5343 mph |
| 50 km/h | 31.0686 mph |
| 100 km/h | 62.1371 mph |
| 250 km/h | 155.3428 mph |
| 500 km/h | 310.6856 mph |
| 1,000 km/h | 621.3712 mph |
Frequently asked questions
How many mile per hours are in a kilometer per hour? +
There are 0.621371 mile per hours in one kilometer per hour.
What is 10 km/h in mph? +
10 km/h equals 6.2137 mph. Multiply 10 by 0.62137119.
How do I convert mile per hour back to kilometer per hour? +
Use kilometer per hour = mile per hour ÷ 0.62137119. The converter above handles both directions, or see our dedicated Mile per hour to Kilometer per hour page.