Convert between mph, km/h, knots, m/s and feet per second — and see the Beaufort, EF-scale, hurricane category, and real-world equivalent for any speed.
Conversion formulas
1 mph = 1.60934 km/h = 0.868976 knots = 0.44704 m/s = 1.46667 ft/s
1 knot = 1.15078 mph = 1.852 km/h = 0.514444 m/s
1 m/s = 2.23694 mph = 3.6 km/h = 1.94384 knots