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km/h

km/h

9 1.7
A unit that shows how many kilometres a vehicle travels in one hour
  • noun
: km/h
  • The car was speeding at 120 km/h when the police pulled it over.
  • speed of km/h
  • 10 km/h
  • 3 km/h

Examples

  • With the DGO, the speed could easily be increased to 2 km/h from the beginning.

    Academic text (2000)
  • I think we can all agree that doing 110 km/h on a straight, empty road doesn't hurt anyone.

    Blog text (22)
  • No one expected it, but winds of 90 km/h are expected.

  • During manual training, the treadmill speed was around 1.5 km/h.

    Academic text (2000)
  • With that said, they usually impose a 130 km/h limit on repaired roads.

    Blog text (12)
  • The new regulations require that a car hitting a pedestrian at 25 km/h shouldn't cause significant injury.

    Blog text (15)
  • Vessel speed while the trawl was being set was between 5.5 and 6.5 km/h.

    Academic text (1998)
  • In Europe, they are limited to 25 km/h (about 15 mph); the electric motor must disengage after that.

    Blog text (11)
  • There's a dual carriageway, and doing 80 km/h on the outside lane is 'normal'.

    Blog text (22)
  • We switched cars and we drive in Nalton towards the precipice at about 65 km/h.

Synonyms

8 2.4

The number of kilometers you travel in one hour

is the same unit but uses the alternate spelling and form
kph
vskm/h
  • Australian
7 2.7

The number of kilometres travelled in one hour

is the full written form rather than an abbreviation

Surface Forms

km/h singular
kmh singular

Etymology

Km/h stands for kilometres per hour, a short way to say how many kilometres you go in one hour. The kilo- part means 'thousand' (as in kilogram) and per means 'for each', so km/h literally tells you the number of kilometres traveled 'for each' hour — in other words, your speed.