Speed Conversion Calculator: convert speed conversion instantly. Full formula, unit table, and worked example.
1 mph = 1.60934 km/h = 0.44704 m/s = 1.46667 ft/s = 0.86898 knots
1 km/h = 0.62137 mph = 0.27778 m/s = 0.53996 knots
1 knot = 1.15078 mph = 1.852 km/h = 0.51444 m/s
1 m/s = 3.6 km/h = 2.23694 mph = 1.94384 knots = 3.28084 ft/s