Kilometers per Hour to Miles per Hour
Convert km/h to mph instantly — free, no sign-up.
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About the Kilometers per Hour (km/h)
The Kilometers per Hour is the standard speed unit for road travel across most of the world.
About the Miles per Hour (mph)
The Miles per Hour is the standard speed unit for road travel in the US and UK.
How to convert km/h to mph
- Enter the value in km/h in the box above.
- The mph equivalent updates instantly.
- Use the swap button to convert mph back to km/h just as easily.