mph to km/h
Convert Mile per Hour to Kilometer per Hour
Convert Mile per Hour to Kilometer per Hour instantly with the tool above. The conversion factor is 1.609344, meaning 1 mile per hour equals 1.609344 kilometers per hour. Type any value and the result updates immediately — no ads, no page reloads, no clutter.
Type a number above. The result updates instantly — no buttons, no reloads.
1 Mile per Hour = 1.609344 kilometers per hour
1 Kilometer per Hour = 0.62137119 miles per hour
Quick reference
Common miles per hour converted to kilometers per hour at a glance.
| mph | km/h |
|---|---|
| 1 | 1.609344 |
| 2 | 3.218688 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 25 | 40.2336 |
| 50 | 80.4672 |
| 100 | 160.9344 |
| 500 | 804.672 |
| 1,000 | 1,609.344 |
How to convert miles per hour to kilometers per hour
To convert a value from miles per hour to kilometers per hour, multiply the mile per hour value by 1.609344 kilometers per hour. For example, 10 miles per hour × that factor = 16.09344 kilometers per hour.
This mile per hour to kilometer per hour converter runs entirely in your browser, so results appear instantly with no page reload, no advertisements and no sign-up.
Frequently asked questions
How many kilometers per hour are in 1 mile per hour?+
1 mile per hour is equal to 1.609344 kilometers per hour.
How do you convert miles per hour to kilometers per hour?+
To convert miles per hour to kilometers per hour, multiply the mile per hour value by 1.609344. For example, 10 miles per hour × 1.609344 = 16.09344 kilometers per hour.
What is the formula to convert miles per hour to kilometers per hour?+
Mile per Hour → Kilometer per Hour: value × 1.609344. Equivalently, 1 mile per hour = 1.609344 kilometers per hour.
Is this Mile per Hour to Kilometer per Hour converter free to use?+
Yes. This mile per hour to kilometer per hour converter is completely free, works instantly in your browser, and contains no advertisements, popups or sign-up.