Miles per hour to Kilometres per hour Converter
Convert mile per hour to kilometre per hour instantly. Type a value below — the result updates as you type.
When you need to convert mile per hour to kilometre per hour
Speed conversions are handy for driving abroad, reading weather and marine forecasts, or comparing vehicle, wind and running pace figures quoted in unfamiliar units.
Driving across borders and reading car speedometers are the main reasons to convert km/h and mph.
Typical values: 0.5 mph is about 0.8047 km/h, and 100 mph works out to roughly 160.9344 km/h. Because the ratio is fixed at 1.6093, you can scale any amount linearly — doubling the miles per hour doubles the kilometres per hour.
Road signs, aviation and sailing each use their own speed unit, so the same motion can be described several ways.
How to convert mile per hour to kilometre per hour
One mile per hour equals 1.6093 kilometres per hour. To convert, multiply the number of miles per hour by 1.6093:
kilometres per hour = miles per hour × 1.6093
For example, 10 miles per hour × 1.6093 = 16.0934 kilometres per hour.
Miles per hour to kilometres per hour conversion table
| Speed (mph) | Kilometres per hour (km/h) |
|---|---|
| 1 mph | 1.6093 km/h |
| 2 mph | 3.2187 km/h |
| 3 mph | 4.828 km/h |
| 5 mph | 8.0467 km/h |
| 10 mph | 16.0934 km/h |
| 20 mph | 32.1869 km/h |
| 50 mph | 80.4672 km/h |
| 100 mph | 160.9344 km/h |
FAQ
How many kilometres per hour are in a mile per hour?
One mile per hour = 1.6093 kilometres per hour.
How do I convert kilometres per hour back to miles per hour?
Divide by 1.6093, or use the kilometres per hour to miles per hour converter.