PNiddy at 20:47, 27 December 2006

2006-12-27T20:47:42Z

New page

'''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''' (see also [[mph]]). It is often spoken and sometimes written as klicks or kays (K's) in slang usage.

By definition, an object travelling at a speed of 1 km·h−1 in a straight line for an hour would move 1 kilometer.

Although much more common in everyday usage than m/s, it is not an SI unit (because the hour isn't).

==Conversions==
* 3.6 km·h−1 ≡ 1 m·s−1, the SI derived unit of speed, meter per second
* 1 km·h−1 ≈ 0.277 78 m·s−1
* 1 km·h−1 ≈ 0.621 37 [[Miles per hour|mph]] ≈ 0.911 34  feet per second
* 1 knot ≡ 1.852 km·h−1 (exactly)

==See Also==
* [[Miles per hour]]
* [[Speed limit]]s

==External Links==
*[http://www.convert-me.com/en/convert/speed Conversion Calculator for Units of Speed]

Kilometers per hour - Revision history

PNiddy at 20:47, 27 December 2006