Kilometers per Hour to Feet per Second Converter
Enter the speed in kilometers per hour below to convert it to feet per second.
Convert Kilometers per Hour to Feet per Second
Enter a value in kilometers per hour (km/h) to convert to feet per second (ft/s).
Kilometers per Hour to Feet per Second Conversion Table
Table showing various kilometers per hour measurements converted to feet per second. Click any preset value or arrow to load it into the converter.
| Kilometers per Hour (km/h) | Feet per Second (ft/s) |
|---|---|
| 1 km/h | 0.9113444 ft/s |
| 2 km/h | 1.8226888 ft/s |
| 2.5 km/h | 2.278361 ft/s |
| 5 km/h | 4.5567221 ft/s |
| 10 km/h | 9.1134442 ft/s |
| 15 km/h | 13.6701662 ft/s |
| 20 km/h | 18.2268883 ft/s |
| 25 km/h | 22.7836104 ft/s |
| 30 km/h | 27.3403325 ft/s |
| 50 km/h | 45.5672208 ft/s |
How to Convert Kilometers per Hour to Feet per Second
To convert kilometers per hour to feet per second, multiply the speed by the following conversion ratio: 0.9113444 feet per second/kilometers per hour.
Since one kilometers per hour is equal to 0.9113444 feet per second, you can use this simple formula to convert:
The speed in feet per second is equal to the speed in kilometers per hour multiplied by 0.9113444.
For example, here's how to convert 5 kilometers per hour to feet per second using the formula above.
How Many Feet per Second Are in a Kilometers per Hour?
There are 0.9113444 feet per second in a kilometers per hour, which is why we use this value in the formula above.
Our kilometers per hour to feet per second calculator automatically converts your speed measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Kilometers per Hour and feet per second are both units used to measure speed. Keep reading to learn more about each unit.
What Is a Kilometers per Hour?
A kilometers per hour is a unit of speed equal to 0.2777778 meters per second (m/s), the base unit for speed. Standard metric road speed unit (1 m/s = 3.6 km/h). [1]
The kilometers per hour is classified as a metric and SI-compatible unit of speed. Kilometers per Hour can be abbreviated as km/h; for example, 1 kilometers per hour can be written as 1 km/h.
In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilometers per hour (km/h) a convenient decimal multiple of the meters per second (m/s).
In practice, kilometers per hour (km/h) are widely used across standard speed applications within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Feet per Second?
A feet per second is a unit of speed equal to 0.3048 meters per second (m/s), the base unit for speed. Equal to 0.3048 m/s. [2]
The feet per second is classified as a US customary and imperial unit of speed. Feet per Second can be abbreviated as ft/s; for example, 1 feet per second can be written as 1 ft/s.
When working with feet per second (ft/s) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, feet per second (ft/s) are widely used across standard speed applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
When converting speed between kilometers per hour (km/h) and feet per second (ft/s), keep full floating-point precision (1 km/h = 0.9113444 ft/s; 1 ft/s = 1.09728 km/h) during intermediate calculations and round only the final feet per second figure to match your instrument tolerance.
More Kilometers per Hour & Feet per Second Conversions
Need to calculate in the opposite direction? Use our feet per second to kilometers per hour calculator to switch your starting unit immediately. You can also explore related tools such as converting feet per second to kilometers per hour, converting miles per hour to feet per second, or converting kilometers per hour to miles per hour.
Convert from Kilometers per Hour
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Velocity))·Speed Metrology Standard — Kilometers per Hour (km/h) to Feet per Second (ft/s)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Length & Distance)·Unit Specifications: Kilometers per Hour (km/h) & Feet per Second (ft/s)
- [3]NIST CUU ReferenceNIST CUU (SI Coherent Derived Units (m/s))·Conversion Factors & Mathematical Basis (km/h to ft/s)