Speed Converter

Convert between speed units

Meters per Second

m/s

Kilometers per Hour

km/h

Miles per Hour

mph

Feet per Second

ft/s

Knots

Mach

Speed of sound:

343 m/s (Mach 1)

Highway speed:

~100 km/h

1 knot =

1.852 km/h

Running pace:

~10 km/h

Speed Units

Used in aviation and maritime navigation. 1 knot = 1 nautical mile per hour.

Ratio of speed to the speed of sound. Mach 1 = 343 m/s at sea level (varies with temperature and altitude).