Speed conversions
Convert between speed units. Miles per hour, km/h, m/s and knots. Each page gives the exact factor and where it comes from, a full table, a worked example, and the reverse conversion.
mph to kmh1 mph = 1.6093 km/hkmh to mph1 km/h = 0.621371 mphmps to kmh1 m/s = 3.6 km/hkmh to mps1 km/h = 0.277778 m/sknots to mph1 kn = 1.1508 mphknots to kmh1 kn = 1.852 km/hmps to mph1 m/s = 2.2369 mphmph to fps1 mph = 1.4667 ft/sfps to mps1 ft/s = 0.3048 m/smps to fps1 m/s = 3.2808 ft/smph to knots1 mph = 0.868976 knkmh to knots1 km/h = 0.539957 kn