Kilometres per hour
Encyclopedia : K : KI : KIL : Kilometres per hour
Kilometres per hour (American spelling: kilometers per hour) is a unit of both speed (scalar) and velocity (vector). The symbol is km·h−1 or km/h but is often, though incorrectly, abbreviated to kph. It is often spoken and sometimes written as klicks or kays in slang usage.
By definition, an object travelling at a speed of 1 km·h−1 for an hour would move 1 kilometre.
Conversions
- 3.6 km·h−1 ≡ 1 m·s−1, the SI derived unit of speed, metre per second
- 1 km·h−1 ≈ 0.27778 m·s−1
- 1 km·h−1 ≈ 0.62137 mph ≈ 0.91134 feet per second
- 1 knot = 1.852 km·h−1 exactly
See also
External links
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