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.

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

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The speed of sound is about 767 mph at sea level

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The fastest MLB pitch was 105.8 mph

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Highway speed limits are typically 55-75 mph

All Mile per Hour Conversions