Speed Converter
km/h, mph, knots and m/s.
1 kilometer per hour = 0.9113444153 ft/s. Enter any value to convert kilometers per hour (km/h) to feet per second (ft/s), or use the table below for common values.
ft/s = km/h × 0.9113444153
Example: 10 km/h = 9.113444153 ft/s. To convert the other way, use km/h = ft/s × 1.09728.
Quick mental estimate: multiply by about 0.91.
| Kilometers per Hour (km/h) | Feet per Second (ft/s) |
|---|---|
| 1 km/h | 0.9113444153 ft/s |
| 5 km/h | 4.556722076 ft/s |
| 10 km/h | 9.113444153 ft/s |
| 20 km/h | 18.22688831 ft/s |
| 30 km/h | 27.34033246 ft/s |
| 40 km/h | 36.45377661 ft/s |
| 50 km/h | 45.56722076 ft/s |
| 60 km/h | 54.68066492 ft/s |
| 70 km/h | 63.79410907 ft/s |
| 80 km/h | 72.90755322 ft/s |
| 90 km/h | 82.02099738 ft/s |
| 100 km/h | 91.13444153 ft/s |
| 120 km/h | 109.3613298 ft/s |
| 150 km/h | 136.7016623 ft/s |
| 200 km/h | 182.2688831 ft/s |
| 300 km/h | 273.4033246 ft/s |
Kilometers per hour is the speed unit on road signs and speedometers in most of the world.
The foot per second is used in US engineering, ballistics and fluid flow.
Use the formula ft/s = km/h × 0.9113444153. For example, 10 km/h = 9.113444153 ft/s.
1 km/h = 0.9113444153 ft/s.
Use km/h = ft/s × 1.09728. 1 ft/s = 1.09728 km/h.