Convert Miles per Hour to Kilometers per Hour
Convert miles per hour to kilometers per hour (mph to km/h) instantly. Free, accurate miles per hour to kilometers per hour calculator with conversion formula and chart.
1 mph = 1.609344 km/h
Conversion formula
1 mile per hour = 1.609344 kilometers per hour
Multiply a value in miles per hour by 1.609344 to get kilometers per hour; divide by the same number to convert back.
Miles per Hour to Kilometers per Hour conversion table
| Miles per Hour (mph) | Kilometers per Hour (km/h) |
|---|---|
| 1 mph | 1.60934 km/h |
| 2 mph | 3.21869 km/h |
| 5 mph | 8.04672 km/h |
| 10 mph | 16.0934 km/h |
| 25 mph | 40.2336 km/h |
| 50 mph | 80.4672 km/h |
| 100 mph | 160.934 km/h |
| 500 mph | 804.672 km/h |
| 1,000 mph | 1,609.34 km/h |
- For example, 12 miles per hour is 19.3121 kilometers per hour.
- A value of 75 miles per hour converts to 120.701 kilometers per hour.
- Going the other way, 1 kilometer per hour is 0.621371 miles per hour.
More speed conversions
About Miles per Hour to Kilometers per Hour
Easily convert miles per hour (mph) to kilometers per hour (km/h) with this free, instant calculator. Enter a value in miles per hour to see the equivalent in kilometers per hour right away — accurate and calculated in your browser.
How to use Miles per Hour to Kilometers per Hour
- 1
Enter the number of miles per hour you want to convert.
- 2
The equivalent value in kilometers per hour appears instantly.
- 3
Switch units anytime to convert in either direction.
How to convert Miles per Hour to Kilometers per Hour
Enter any value in miles per hour (mph) and this calculator instantly shows the equivalent in kilometers per hour (km/h) using the exact internationally agreed conversion factor — no rounding tricks, no ads in the way, and it works offline once the page is loaded.
Use the swap button to convert in the other direction (kilometers per hour to miles per hour), or switch to any other speed unit from the dropdown — the same page handles meters per second, kilometers per hour, miles per hour, knots, feet per second.
Frequently Asked Questions
How do you convert miles per hour to kilometers per hour?
Enter your value in miles per hour and the converter instantly shows the result in kilometers per hour using the exact conversion factor.
Is the miles per hour to kilometers per hour converter free?
Yes — it's completely free, instant and requires no sign-up.
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