How to convert miles per hour to kilometers per hour
- Type the value you want to convert.
- The result appears instantly. Use Swap units to reverse the direction.
- Choose other units from the lists if you need a different conversion.
Formula
km/h = mph × 1.6093 and mph = km/h × 0.6214.
Examples
30 mph = 48.2803 km/h. 55 mph = 88.5139 km/h. 65 mph = 104.6074 km/h.
Quick reference table
| mph | km/h |
|---|---|
| 5 mph | 8.0467 km/h |
| 10 mph | 16.0934 km/h |
| 20 mph | 32.1869 km/h |
| 30 mph | 48.2803 km/h |
| 40 mph | 64.3738 km/h |
| 55 mph | 88.5139 km/h |
| 60 mph | 96.5606 km/h |
| 65 mph | 104.6074 km/h |
| 70 mph | 112.6541 km/h |
| 100 mph | 160.9344 km/h |
And the other way: km/h to mph
| km/h | mph |
|---|---|
| 1 km/h | 0.6214 mph |
| 5 km/h | 3.1069 mph |
| 10 km/h | 6.2137 mph |
| 25 km/h | 15.5343 mph |
| 50 km/h | 31.0686 mph |
| 100 km/h | 62.1371 mph |
When you need this conversion
US and UK speed limits, wind speeds and vehicle specs are given in mph. Convert them to km/h to compare with limits and specifications in the rest of the world.
Frequently asked questions
How many km/h is 1 mph?
1 mph equals 1.6093 km/h. In the other direction, 1 km/h equals 0.6214 mph.
How many km/h is 60 mph?
60 mph is 96.5606 km/h.
What is the formula to convert miles per hour to kilometers per hour?
Multiply the number of mph by 1.6093 to get km/h. To go back, multiply km/h by 0.6214.
Is this converter free and private?
Yes. It is free, needs no sign-up and runs in your browser, so the numbers you enter are not sent anywhere.
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Last updated: November 6, 2026