Miles per hour to kilometres per hour
Enter a value in miles per hour to convert it to kilometres per hour. 1 mph = 1.6093 km/h.
1 mph = 1.6093 km/h
Formula
km/h = mph × 1.609344
Worked example
10 mph × 1.609344 = 16.0934 km/h
Results on this page are rounded to 4 decimal places (4 significant figures below 1). Use the decimal places option above for a different rounding.
Miles per hour to kilometres per hour table
| Miles per hour (mph) | Kilometres per hour (km/h) |
|---|---|
| 1 mph | 1.6093 km/h |
| 2 mph | 3.2187 km/h |
| 5 mph | 8.0467 km/h |
| 10 mph | 16.0934 km/h |
| 15 mph | 24.1402 km/h |
| 20 mph | 32.1869 km/h |
| 25 mph | 40.2336 km/h |
| 50 mph | 80.4672 km/h |
| 75 mph | 120.7008 km/h |
| 100 mph | 160.9344 km/h |
| 250 mph | 402.336 km/h |
| 500 mph | 804.672 km/h |
| 1,000 mph | 1,609.344 km/h |
Good to know
Speeds are converted through metres per second. 1 km/h is 1/3.6 m/s, 1 mph is exactly 0.44704 m/s, and a knot is one nautical mile per hour, about 0.5144 m/s.