Mile per Hour Conversions

1 Mile per Hour =
1.609344 Kilometers per Hour
(exact result)
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.
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.