Kilometres per hour to miles per hour
Type a value in either box. 1 km/h = 0.621371 mph.
Last updated
How to convert
To convert kilometres per hour to miles per hour, divide by 1.609344 (or multiply by 0.621371).
mph = km/h × 0.621371
For example: 70 km/h ÷ 1.609344 = 43.496 mph.
One mile per hour is exactly 1.609344 km/h.
In your head: Multiply by 5 and divide by 8: 80 km/h ≈ 50 mph (exactly 49.7).
When you’ll need it
Speed limits in continental Europe are in km/h: 130 km/h on a French motorway is about 81 mph, and 50 km/h in towns is about 31 mph.
Common values
| Kilometres per hour (km/h) | Miles per hour (mph) |
|---|---|
| 10 km/h | 6.2137 mph |
| 20 km/h | 12.4274 mph |
| 30 km/h | 18.6411 mph |
| 40 km/h | 24.8548 mph |
| 50 km/h | 31.0686 mph |
| 60 km/h | 37.2823 mph |
| 70 km/h | 43.496 mph |
| 80 km/h | 49.7097 mph |
| 90 km/h | 55.9234 mph |
| 100 km/h | 62.1371 mph |
| 110 km/h | 68.3508 mph |
| 120 km/h | 74.5645 mph |
Questions
- How many kilometres per hour make a mile per hour?
- 1 mile per hour is 1.609344 kilometres per hour, so 1 kilometre per hour = 0.621371 miles per hour.
- What is the formula to convert kilometres per hour to miles per hour?
- mph = km/h × 0.621371. One mile per hour is exactly 1.609344 km/h.
- What is 70 kilometres per hour in miles per hour?
- 70 kilometres per hour is 43.496 miles per hour.