Speed Converter
Convert between different units of speed measurement
From
Kilometers per hour (km/h)
Miles per hour (mph)
Meters per second (m/s)
Knots (kt)
Feet per second (ft/s)
Mach (M)
Speed of light (c)
Speed of sound (m/s)
To
Miles per hour (mph)
Kilometers per hour (km/h)
Meters per second (m/s)
Knots (kt)
Feet per second (ft/s)
Mach (M)
Speed of light (c)
Speed of sound (m/s)
Convert
Swap Units
Common Speed Conversions
1 km/h = 0.621371 mph
1 mph = 1.60934 km/h
1 m/s = 3.6 km/h
1 knot = 1.852 km/h
1 Mach = 340.3 m/s
1 ft/s = 0.3048 m/s
Speed of light = 299,792,458 m/s
Speed of sound = 343 m/s
Usage Tips
Enter any numeric value in the "From" field
Select your input unit from the dropdown menu
Choose your desired output unit
Click "Convert" to see the result
Use "Swap Units" to quickly reverse the conversion