Miles Per Hour (mi/h) Conversions
Miles per hour (mph or mi/h) is a British imperial and United States customary unit of speed expressing the number of miles travelled in one hour. It is used in the United Kingdom, the United States, and a number of smaller countries, most of which are UK or US territories, or have close historical ties with the UK or US.
Miles per hour is the unit used on the US and Canadian rail systems. Miles per hour is also used on British rail systems, excluding trams and some light metro systems. In some countries mph may be used to express the speed of delivery of a ball in sporting events such as cricket, tennis and baseball.