🔄 Unit Converters

Speed Converter

Convert between miles per hour, km/h, meters per second, knots, Mach and feet per second instantly.

Enter any speed — all units update live.

km/h (kph)

Miles/hour (mph)

Meters/sec (m/s)

Feet/sec (ft/s)

Knots (kn)

Mach (at sea level)

Light Speed (c)

1 mph = 1.60934 km/h

1 knot = 1.852 km/h

1 m/s = 3.6 km/h

Mach 1 ≈ 1235 km/h

Speed of light ≈ 299,792 km/s

1 ft/s = 0.3048 m/s