Speed / Velocity conversion
Most of the units of speed are compound units of distance by time, for example the SI unit
Meters per second. Notable exceptions to this are Mach (a unit based on the speed of sound) and Knots (which is actually Nautical Miles per hour).
Metric countries use
Kilometers per hour for road and transport whereas non-metric countries including the United Kingdom use Miles per hour.
Acceleration measurements can be converted in the same way as the corresponding speed unit.
Mobile phone converter app
Whilst every effort has been made to ensure the accuracy of the metric calculators and charts given on this site, we cannot make a guarantee or be held responsible for any errors that have been made. If you spot an error on this site, we would be grateful if you could report it to us by using the contact link at the top of this page and we will endeavour to correct it as soon as possible.
Created:Fri 31 Oct 2003 this page last updated:: Wed 08 Feb 2013