Convert between mph, km/h, m/s, knots, and ft/s. Enter one value and see every unit instantly. Runs entirely in your browser.
Accurate to standard conversion factors. Rounded for display.
What is a speed converter? It changes a speed from one unit (such as miles per hour) into every other unit (mph, km/h, m/s, knots, ft/s) at the same time.
Each speed is converted to metres per second using a fixed factor, then to the target unit. The factors to m/s are: mph 0.44704, km/h 0.277778, knot 0.514444, and ft/s 0.3048.
60 mph is about 96.56 km/h. The math: 60 × 0.44704 = 26.8224 m/s, then divided by 0.277778 gives roughly 96.56 km/h.
A knot is one nautical mile per hour, used in sea and air travel. One knot equals 0.514444 m/s, which is about 1.15 mph or 1.852 km/h.