Convert mph to km/h
1 mile per hour equals 1.60934 kilometers per hour. To convert miles per hour to kilometers per hour, multiply the number of miles per hour by 1.60934: for example, 10 mph is 16.0934 km/h. Ethical Tube's free mph to km/h converter does the math as you type, and the chart below lists common values.
1 mph = 1.60934 km/h
- 1 mph
- 1.60934 km/h
- 1 km/h
- 0.621371 mph
- Formula
- km/h = mph × 1.60934
- Measures
- Speed
- Price
- Free
- Works offline
- Yes
Conversion chart
mph to km/h chart
| Miles per hour (mph) | Kilometers per hour (km/h) |
|---|---|
| 1 mph | 1.60934 km/h |
| 2 mph | 3.21869 km/h |
| 3 mph | 4.82803 km/h |
| 4 mph | 6.43738 km/h |
| 5 mph | 8.04672 km/h |
| 6 mph | 9.65606 km/h |
| 8 mph | 12.8748 km/h |
| 10 mph | 16.0934 km/h |
| 12 mph | 19.3121 km/h |
| 15 mph | 24.1402 km/h |
| 20 mph | 32.1869 km/h |
| 25 mph | 40.2336 km/h |
| 50 mph | 80.4672 km/h |
| 100 mph | 160.934 km/h |
How it works
How to convert mph to km/h
Know the formula
km/h = mph × 1.60934. In words: multiply the number of miles per hour by 1.60934.
Work an example
10 mph → 16.0934 km/h. Round to two or three decimal places for everyday use.
Or type it in
Enter any value in the converter above and the answer appears instantly, in both directions.
Good to know
About speed units
- One mile per hour is exactly 1.609344 kilometers per hour.
- A knot is one nautical mile (1,852 meters) per hour. Ships and aircraft use it.
FAQ
Questions, answered
How many kilometers per hour are in a mile per hour?
There are 1.60934 kilometers per hour in 1 mile per hour. To convert miles per hour to kilometers per hour, multiply the number of miles per hour by 1.60934.
What is 10 mph in km/h?
10 miles per hour is 16.0934 kilometers per hour.
How do you convert km/h back to mph?
Multiply the number of kilometers per hour by 0.621371. 1 kilometer per hour is 0.621371 miles per hour.
Is this mph to km/h converter free?
Yes. It's free and works in any browser, even offline once the page has loaded. The answer updates as you type, and nothing you enter is sent anywhere.
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