How to convert miles per hour to kilometers per hour
To convert miles per hour to kilometers per hour, multiply the value by 1.609344.
km/h = mph × 1.609344
Example: 10 mph × 1.609344 = 16.0934 km/h
1 mph = 1.60934 km/h · 1 km/h = 0.621371 mph
One mile per hour is exactly 1.609344 kilometers per hour. For a quick estimate in your head, multiply km/h by 0.6 to get mph, or multiply mph by 1.6 to get km/h.
Miles per hour to kilometers per hour conversion table
| Miles per Hour (mph) | Kilometers per Hour (km/h) |
|---|---|
| 5 mph | 8.04672 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 |
| 30 mph | 48.2803 km/h |
| 35 mph | 56.327 km/h |
| 40 mph | 64.3738 km/h |
| 45 mph | 72.4205 km/h |
| 50 mph | 80.4672 km/h |
| 55 mph | 88.5139 km/h |
| 60 mph | 96.5606 km/h |
| 65 mph | 104.607 km/h |
| 70 mph | 112.654 km/h |
| 75 mph | 120.701 km/h |
| 80 mph | 128.748 km/h |
| 90 mph | 144.841 km/h |
| 100 mph | 160.934 km/h |
| 120 mph | 193.121 km/h |
| 150 mph | 241.402 km/h |
| 200 mph | 321.869 km/h |
Need another unit? The Unit Converter converts length, weight, temperature, area, volume, speed, time, data, pressure and energy.