KnowraKilometres per hourLinked fromLinked fromThe 3 pages that link to Kilometres per hour, each with the reason it gives.All 3Broader topic 1Compared with 2KilometreBroader topic: It uses the kilometre as the distance component of a speed measurement.Metre per secondCompared with: It is common in road signs, unlike the SI unit m/s.Miles per hourCompared with: It is the common road-speed alternative to mph in most countries.