Speed

		=

-

Rounding:

Seperators:
?

Choose thousands separator
and decimal mark:

space and dot	1 234 567.89
space and comma	1 234 567,89
comma and dot	1,234,567.89
dot and comma	1.234.567,89
nothing and dot	1234567.89
nothing and comma	1234567,89
	X

Popular quickchoices:

kilometre per hour (km/h) <> mile per hour (mph)
metre per second (m/s) <> foot per second (fps)
knot (kn) <> kilometre per hour (km/h)
speed of light <> kilometre per hour (km/h)
speed of sound <> kilometre per hour (km/h)

*SI (International System of Units):

A modern, coherent system of measurement units, built around seven base units. The SI is officially adopted by almost every country in the world.