km/h to ft/s (Kilometers per Hour to Feet per Second)
1 kilometer per hour equals 0.91134442 feet per second — multiply km/h by 0.91134442 to convert. The factor comes from dividing 1,000 meters (3280.84 feet) across 3,600 seconds, giving just under one foot per second for each km/h.
The formula
Multiply the km/h value by 0.91134442 to get feet per second:
ft/s = km/h × 0.91134442
For example, 36 km/h × 0.91134442 = 32.808399 ft/s. To reverse, divide ft/s by 0.91134442 (or multiply by 1.09728).
Conversion table
| Kilometers per hour (km/h) | Feet per second (ft/s) |
|---|---|
| 1 | 0.91134442 |
| 2 | 1.82268884 |
| 5 | 4.5567221 |
| 10 | 9.1134442 |
| 25 | 22.7836105 |
| 50 | 45.567221 |
| 100 | 91.134442 |
| 500 | 455.67221 |
| 1000 | 911.34442 |
How to convert online
- Type the number of kilometers per hour in the first box.
- Read the feet-per-second result instantly in the second box.
- Enter a ft/s value to convert the other way — it works both directions.
Use the Kilometer per Hour to Foot per Second Converter — free and instant in your browser.
Where this conversion is used
Feet per second is the standard speed unit in US physics and engineering problems, ballistics, and sports science, while km/h is how most of the world reports vehicle and running speeds. Converting between them lets students check homework, engineers align metric telemetry with imperial specs, and coaches compare sprint velocities recorded by different devices.
FAQ
How many feet per second are in a km/h?
One km/h equals 0.91134442 ft/s. Multiply the km/h figure by 0.91134442 — for example, 10 km/h = 9.1134442 ft/s.
What is the formula to convert km/h to ft/s?
Use ft/s = km/h × 0.91134442. The tool applies this exact factor automatically so you never round by hand.
How do I convert ft/s back to km/h?
Divide by 0.91134442, or multiply by 1.09728. For instance, 9.1134442 ft/s = 10 km/h.
Is the conversion exact?
The factor is exact to the definitions of the meter and foot; 0.91134442 is that ratio rounded to eight places for practical use.
Related converters
- Foot per Second to Kilometer per Hour Converter
- Kilometer per Hour to Meter per Second Converter
- Kilometer per Hour to Mile per Hour Converter
- Kilometer per Hour to Knot Converter
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