mph
What is a Mile per Hour?
Speed Unit
Definition
Miles per hour (mph) is a unit of speed representing the number of miles traveled in one hour.
Popular Mile per Hour Conversions
Most common conversions from Miles per Hour
History
Miles per hour has been the standard speed measurement in the United States and United Kingdom for road vehicles.
Common Uses
- Road speed limits in US and UK
- Baseball pitching speeds
- Wind speed in US weather reports
- Vehicle specifications
Fun Facts
The speed of sound is about 767 mph at sea level
The fastest MLB pitch was 105.8 mph
Highway speed limits are typically 55-75 mph