Miles per Hour to Kilometers per Hour Converter (mph to km/h)
Type a value in miles per hour to see it in kilometers per hour instantly.
1 mile per hour (mph) = 1.609344 kilometers per hour (km/h)
1 kilometer per hour (km/h) = 0.621371192 miles per hour (mph)
How to convert miles per hour to kilometers per hour
Multiply the number of miles per hour by 1.609344.
km/h = mph × 1.609344
Example: 70 mph × 1.609344 = 112.654 km/h
UK motorway limit 70 mph is 112.7 km/h; the common US limits of 55, 65 and 75 mph are 88.5, 104.6 and 120.7 km/h.
mph to km/h 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 |
About the units
Mile per hour (mph)
Miles per hour is the unit for road speed in the United States and the United Kingdom. 1 mph is exactly 1.609344 km/h.
Kilometer per hour (km/h)
Kilometers per hour is the unit for road speed limits and vehicle speedometers in most countries.
Frequently asked questions
How many kilometers per hour are in 1 mile per hour?
1 mile per hour equals 1.609344 kilometers per hour.
How do I convert miles per hour to kilometers per hour?
Multiply the number of miles per hour by 1.609344. For example, 70 mph × 1.609344 = 112.654 km/h.
How many miles per hour are in 1 kilometer per hour?
1 kilometer per hour equals 0.621371192 miles per hour.
How fast is 60 mph in km/h?
60 mph is 96.56 km/h.
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Background reading: Metric vs. Imperial.