Perform quick & accurate conversions and calculations
Speed converter refers to the process of changing a speed measurement from one unit to another. Speed is typically measured as the distance traveled per unit of time, and it can be expressed in various units depending on the system of measurement being used.
Units of speed include knots, Mach number, speed of sound, speed of light, miles per hour, feet per second, kilometers per second, kilometers per hour, meters per second, and centimeters per second.
| Convert from | Knot | Mach | Speed Of Sound | Speed Of Light | Mile Per Hour | Foot Per Second | Kilometer Per Second | Kilometer Per Hour | Meter Per Second | Centimeter Per Second |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 knot = | 1 kn | Mach 0.0015 | 0.0015 sound | 0.000000001716 c | 1.150779 mph | 1.68781 ft/s | 0.000514 km/s | 1.852 km/h | 0.514444 m/s | 51.444444 cm/s |
| Mach 1 = | 666.738661 kn | Mach 1 | 1 sound | 0.0000011441 c | 767.269148 mph | 1,125 ft/s | 0.343 km/s | 1,235 km/h | 343 m/s | 34,300 cm/s |
| speed of sound = | 666.738661 kn | Mach 1 | 1 sound | 0.0000011441 c | 767.269148 mph | 1,125 ft/s | 0.343 km/s | 1,235 km/h | 343 m/s | 34,300 cm/s |
| speed of light = | 582,749,918 kn | Mach 874,030 | 874,030 sound | 1 c | 670,616,629 mph | 983,571,056 ft/s | 299,792 km/s/td> | 1,079,252,849 km/h | 299,792,458 m/s | 29,979,245,800 cm/s |
| 1 mile per hour = | 0.868976 kn | Mach 0.001303 | 0.001303 sound | 0.0000000014912 c | 1 mph | 1.466667 ft/s | 0.000447 km/s | 1.609344 km/h | 0.44704 m/s | 44.704 cm/s |
| 1 foot per second = | 0.592484 kn | Mach 0.000889 | 0.000889 sound | 0.0000000010167 c | 0.681818 mph | 1 ft/s | 0.000305 km/s | 1.09728 km/h | 0.3048 m/s | 30.48 cm/s |
| 1 kilometer per second = | 1,944 kn | Mach 2.915452 | 2.915452 sound | 0.0000033356 c | 2,237 mph | 3,281 ft/s | 1 km/s | 3,600 km/h | 1,000 m/s | 100,000 cm/s |
| 1 kilometer per hour = | 0.539957 kn | Mach 0.00081 | 0.00081 sound | 0.00000000092657 c | 0.621371 mph | 0.911344 ft/s | 0.000278 km/s | 1 km/h | 0.277778 m/s | 27.777778 cm/s |
| 1 meter per second = | 1.943844 kn | Mach 0.002915 | 0.002915 sound | 0.0000000033356 c | 2.236936 mph | 3.28084 ft/s | 0.001 km/s | 3.6 km/h | 1 m/s | 100 cm/s |
| 11 centimeter per second = | 0.019438 kn | Mach 0.000029155 | 0.000029155 sound | 0.000000000033356 c | 0.022369 mph | 0.032808 ft/s | 0.00001 km/s | 0.036 km/h | 0.01 m/s | 1 cm/s |
