Mph

Mph

Abbreviation (noun) · /ˌem.piːˈeɪtʃ/

Definition

Miles per hour — a unit of speed indicating the number of miles travelled in one hour; the standard unit of speed for road vehicles and speed limits in the United Kingdom, United States, and a small number of other countries that use imperial measurement.

Origin

An abbreviation of miles per hour — mile from Old English mīl from Latin milia passuum (a thousand paces), per from Latin per, and hour from Old English hūr from Proto-Germanic *hūrǭ, from Greek hōra (time, season). The mph speed measure being used in the UK and US while most of the world uses km/h (kilometres per hour). UK road speed limits being set in mph: 30 mph in built-up areas, 60 mph on single carriageways, 70 mph on motorways. The national speed record and air speed records being expressed in mph by British and American sources.