Convert miles per hour to kilometers per hour quickly and accurately using this free online converter
Used for driving speed limits, athletic performance, and vehicle specs.
💡 The US and UK use mph; most countries use km/h for speed limits.
km/h = mph × 1.6093
Example: 1 mph × 1.6093 = 1.6093 km/h
Use mph for US/UK; km/h for international contexts.
Common uses: driving, athletics, and vehicle performance.
How do I convert mph to km/h?
Multiply the value in Miles per hour by 1.6093. For example: 10 mph = 16.0934 km/h.
When should I use Kilometers per hour instead of Miles per hour?
Use mph for US/UK; km/h for international contexts.
Is this converter accurate?
Yes. We use internationally recognized conversion factors, updated to current standards.
| Miles per hour (mph) | Kilometers per hour (km/h) |
|---|---|
| 10 mph | 16.0934 km/h |
| 20 mph | 32.1869 km/h |
| 30 mph | 48.2803 km/h |
| 50 mph | 80.4671 km/h |
| 60 mph | 96.5606 km/h |
| 80 mph | 128.7474 km/h |
| 100 mph | 160.9343 km/h |
| 120 mph | 193.1211 km/h |
| 150 mph | 241.4014 km/h |
| 200 mph | 321.8685 km/h |