Feet per second to km/h – convert fps to km/h
Convert feet per second to kilometres per hour (fps to km/h) to compare impact speeds, ball speeds and experimental data with everyday vehicle and running speeds.
Open the interactive fps → km/h converter:
Use main converter (fps → km/h) or switch to km/h → fpsThe speed converter also supports m/s, km/h, mph and knots for land, air and marine speeds.
Quick reference: fps to km/h
One foot per second is about 1.097 km/h. So: km/h = fps × 1.09728. Examples:
| Feet per second (fps) | Speed (km/h, approx.) |
|---|---|
| 5 fps | 5.49 km/h |
| 10 fps | 10.97 km/h |
| 20 fps | 21.95 km/h |
| 30 fps | 32.92 km/h |
| 50 fps | 54.86 km/h |
| 100 fps | 109.73 km/h |
Why convert feet per second to km/h?
fps to km/h is useful when you:
- Compare measured impact or projectile speeds with car or bike speeds.
- Convert lab or sports timing data into more intuitive km/h figures.
- Work between imperial (feet) and metric (kilometres) speed units.
- Teach relationships between fps, m/s, km/h and mph in physics classes.
Other speed converters on this site
The main converter keeps full precision for technical use, while you can round the results to 1–2 decimal places for everyday decisions.
Page last updated: 4 December 2025.