Kilometres per hour to miles per hour
Enter a value in kilometres per hour to convert it to miles per hour. 1 km/h = 0.6214 mph.
1 km/h = 0.6214 mph
Formula
mph = km/h ÷ 1.609344
Worked example
10 km/h ÷ 1.609344 = 6.2137 mph
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.
Kilometres per hour to miles per hour table
| Kilometres per hour (km/h) | Miles per hour (mph) |
|---|---|
| 1 km/h | 0.6214 mph |
| 2 km/h | 1.2427 mph |
| 5 km/h | 3.1069 mph |
| 10 km/h | 6.2137 mph |
| 15 km/h | 9.3206 mph |
| 20 km/h | 12.4274 mph |
| 25 km/h | 15.5343 mph |
| 50 km/h | 31.0686 mph |
| 75 km/h | 46.6028 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 |
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.