How to convert miles per hour to kilometers per hour
To convert miles per hour to kilometers per hour, multiply the value by the conversion factor 1.609344. To go the other way, multiply by 0.6213711922 (or divide by 1.609344).
Worked example: 60 mph to km/h
- Write the value: 60 mph
- Multiply by 1.609344: 60 × 1.609344
- Result: 96.5606 km/h
Mile per Hour to Kilometer per Hour conversion table
Quick reference values, rounded to 6 significant digits.
| Mile per Hour (mph) | Kilometer per Hour (km/h) |
|---|---|
| 0.1 mph | 0.160934 km/h |
| 0.25 mph | 0.402336 km/h |
| 0.5 mph | 0.804672 km/h |
| 1 mph | 1.60934 km/h |
| 2 mph | 3.21869 km/h |
| 3 mph | 4.82803 km/h |
| 4 mph | 6.43738 km/h |
| 5 mph | 8.04672 km/h |
| 6 mph | 9.65606 km/h |
| 7 mph | 11.2654 km/h |
| 8 mph | 12.8748 km/h |
| 9 mph | 14.4841 km/h |
| 10 mph | 16.0934 km/h |
| 12 mph | 19.3121 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 |
| 40 mph | 64.3738 km/h |
| 50 mph | 80.4672 km/h |
| 75 mph | 120.701 km/h |
| 100 mph | 160.934 km/h |
| 250 mph | 402.336 km/h |
| 500 mph | 804.672 km/h |
| 1,000 mph | 1,609.34 km/h |
Kilometer per Hour to Mile per Hour
| km/h | mph |
|---|---|
| 1 km/h | 0.621371 mph |
| 5 km/h | 3.10686 mph |
| 10 km/h | 6.21371 mph |
| 50 km/h | 31.0686 mph |
| 100 km/h | 62.1371 mph |
1 Mile per Hour in other speed units
About Mile per Hour and Kilometer per Hour
What is a mile per hour (mph)?
Miles per hour is used for road speed in the US and UK.
What is a kilometer per hour (km/h)?
Kilometers per hour is used on speedometers and road signs in Bangladesh and most of the world.
Where mile per hour to kilometer per hour conversion is used
Speed conversions are needed for driving, wind speed reports, aviation, sports and physics problems. Converting between miles per hour and kilometers per hour is especially common when you compare products, read foreign specifications, or fill in forms that expect a specific unit.
Need every unit at once? Use the full Speed Converter.
Frequently asked questions
How many kilometers per hour are in 1 mile per hour?
1 Mile per Hour equals 1.60934 km/h.
How do I convert miles per hour to kilometers per hour?
Multiply the number of miles per hour by 1.609344. For example, 60 mph × 1.609344 = 96.5606 km/h.
What is 60 mph in km/h?
60 mph = 96.5606 km/h.
How many miles per hour are in 1 kilometer per hour?
1 Kilometer per Hour equals 0.621371 mph. Use the km/h to MPH converter for the reverse direction.
Is this Mile per Hour to Kilometer per Hour converter accurate?
Yes. It uses exact internationally defined conversion factors, calculated with full floating-point precision. Results are displayed rounded for readability.