Miles per hour to Kilometres per hour Converter
Type a number to convert miles per hour to kilometres per hour. The result updates as you type, and you can swap the units to convert back.
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The formula
kilometres per hour = miles per hour x 1.6093
How to convert miles per hour to kilometres per hour
To convert miles per hour to kilometres per hour, multiply by 1.6093. One mile per hour equals 1.6093 kilometres per hour, and one kilometre per hour equals 0.62137 miles per hour.
A worked example
12 miles per hour is 19.312 kilometres per hour.
Quick conversion table
| Miles per hour | Kilometres per hour |
|---|---|
| 5 mph | 8.0467 km/h |
| 10 mph | 16.093 km/h |
| 15 mph | 24.14 km/h |
| 20 mph | 32.187 km/h |
| 25 mph | 40.234 km/h |
| 30 mph | 48.28 km/h |
| 40 mph | 64.374 km/h |
| 50 mph | 80.467 km/h |
| 55 mph | 88.514 km/h |
| 60 mph | 96.561 km/h |
| 65 mph | 104.61 km/h |
| 70 mph | 112.65 km/h |
| 75 mph | 120.7 km/h |
| 80 mph | 128.75 km/h |
| 100 mph | 160.93 km/h |
And the other way: kilometres per hour to miles per hour
| Kilometres per hour | Miles per hour |
|---|---|
| 1 km/h | 0.62137 mph |
| 2 km/h | 1.2427 mph |
| 5 km/h | 3.1069 mph |
| 10 km/h | 6.2137 mph |
| 20 km/h | 12.427 mph |
| 25 km/h | 15.534 mph |
| 50 km/h | 31.069 mph |
| 100 km/h | 62.137 mph |
When you will need it
Speed limits, car specs, running speed and wind forecasts differ between countries.
Multiply mph by 1.6 for km/h. 60 mph is about 97 km/h.
Miles per hour to Kilometres per hour Converter: frequently asked questions
How many kilometres per hour are in one mile per hour?
One mile per hour is 1.6093 kilometres per hour.
How many miles per hour are in one kilometre per hour?
One kilometre per hour is 0.62137 miles per hour.
Is this miles per hour to kilometres per hour conversion exact?
The factor is exact where the units are defined that way, and we show the result rounded for readability.
How exact is the conversion?
It uses the internationally agreed definitions, and rounds only the number you see.
Is what I enter in this converter saved or sent anywhere?
No. The calculation runs in your browser, so what you enter is not sent to our servers. We only count, anonymously, whether a tool ran successfully.
Is this converter free to use?
Yes. It is free, needs no sign-up and has no usage limit.
Last reviewed: October 3, 2026