Velocity unit converter
Convert between m/s, km/h, mph, ft/s, ft/min, in/s and more, with formulas and tables.
Popular velocity conversions
Conversion matrix
Each cell is how many of the column unit equal 1 of the row unit. Tap a value for the full table.
| m/s | km/h | mph | ft/s | ft/min | in/s | kn | |
|---|---|---|---|---|---|---|---|
| 1 m/s | 1 | 3.6 | 2.23694 | 3.28084 | 196.85 | 39.3701 | 1.94384 |
| 1 km/h | 0.277778 | 1 | 0.621371 | 0.911344 | 54.6807 | 10.9361 | 0.539957 |
| 1 mph | 0.44704 | 1.60934 | 1 | 1.46667 | 88 | 17.6 | 0.868976 |
| 1 ft/s | 0.3048 | 1.09728 | 0.681818 | 1 | 60 | 12 | 0.592484 |
| 1 ft/min | 0.00508 | 0.018288 | 0.0113636 | 0.0166667 | 1 | 0.2 | 0.00987473 |
| 1 in/s | 0.0254 | 0.09144 | 0.0568182 | 0.0833333 | 5 | 1 | 0.0493737 |
| 1 kn | 0.514444 | 1.852 | 1.15078 | 1.68781 | 101.269 | 20.2537 | 1 |
The units
- m/s (metres per second): The SI unit of speed.
- km/h (kilometres per hour): Road and vehicle speeds.
- mph (miles per hour): US road speeds.
- ft/s (feet per second): Fluid velocities in US pipe and duct work.
- ft/min (feet per minute): Air velocity in ducts (fpm) and conveyors.
- in/s (inches per second): Machine travel speeds.
- kn (knots): Marine and aviation speed.
The knot is one nautical mile per hour, exactly 0.514444 m/s.
All velocity conversions
- m/s to km/h
- m/s to mph
- m/s to ft/s
- m/s to ft/min
- m/s to in/s
- m/s to kn
- km/h to m/s
- km/h to mph
- km/h to ft/s
- km/h to ft/min
- km/h to in/s
- km/h to kn
- mph to m/s
- mph to km/h
- mph to ft/s
- mph to ft/min
- mph to in/s
- mph to kn
- ft/s to m/s
- ft/s to km/h
- ft/s to mph
- ft/s to ft/min
- ft/s to in/s
- ft/s to kn
- ft/min to m/s
- ft/min to km/h
- ft/min to mph
- ft/min to ft/s
- ft/min to in/s
- ft/min to kn
- in/s to m/s
- in/s to km/h
- in/s to mph
- in/s to ft/s
- in/s to ft/min
- in/s to kn
- kn to m/s
- kn to km/h
- kn to mph
- kn to ft/s
- kn to ft/min
- kn to in/s