Speed Conversion Calculator

1 mph = 1.609344* km/hr
1 mph = 88* ft/min
1 mph = 0.44704* m/s
1 m/s = 3.6* km/hr
1 ft/s = 0.3048* m/s
1 ft/s = 1.09728* km/hr
1 knot(intnl) = 1.852* km/hr
1 c = 299792458* m/s
* Exact conversions