Mile per Hour Conversions

Use this easy and mobile-friendly calculator to convert between Miles per Hour and other units of Speed.
swap units ↺
1 Mile per Hour =
1.609344 Kilometers per Hour
exact result
Decimal places
Miles per Hour
A mile per hour is a unit of speed commonly used in the United States. It is equal to exactly 1.609344 kilometers per hour.
Common abbreviations: mph, mi/h
Kilometers per Hour
A kilometer per hour is a unit of speed. Something traveling at one kilometer per hour is traveling about 0.278 meters per second, or about 0.621 miles per hour.
Common abbreviations: km/h, kmph, km/hr, km/hour