Table Of Contents
Foot per second to kilometers per hour Conversion
1 foot per second (ft/s) is equal to 1.09728 kilometers per hour (km/hr).
1 ft/s = 1.09728 km/hr
or
1 km/hr = 0.9113444153 ft/s
Formula
To convert a speed from foot per second (ft/s) to kilometers per hour (km/hr), multiply the speed in foot per second by 1.09728
s(km/hr) = s(ft/s) × 1.09728
Examples:
Convert 1 foot per second to kilometers per hour:
s(km/hr) = 1ft/s × 1.09728 = 1.09728 km/hr
Conversion table
| Foot per second (ft/s) | Kilometers per hour (km/hr) |
|---|---|
| 1 ft/s | 1.09728 km/hr |
| 2 ft/s | 2.19456 km/hr |
| 3 ft/s | 3.29184 km/hr |
| 5 ft/s | 5.4864 km/hr |
| 10 ft/s | 10.9728 km/hr |
| 20 ft/s | 21.9456 km/hr |
| 25 ft/s | 27.432 km/hr |
| 30 ft/s | 32.9184 km/hr |
| 50 ft/s | 54.864 km/hr |
| 60 ft/s | 65.8368 km/hr |
| 80 ft/s | 87.7824 km/hr |
| 100 ft/s | 109.728 km/hr |
| 120 ft/s | 131.6736 km/hr |
| 250 ft/s | 274.32 km/hr |
| 500 ft/s | 548.64 km/hr |
| Kilometers per hour (km/hr) | Foot per second (ft/s) |
|---|---|
| 1 km/hr | 0.911344415 ft/s |
| 2 km/hr | 1.822688831 ft/s |
| 3 km/hr | 2.734033246 ft/s |
| 5 km/hr | 4.556722076 ft/s |
| 10 km/hr | 9.113444153 ft/s |
| 20 km/hr | 18.226888306 ft/s |
| 25 km/hr | 22.783610382 ft/s |
| 30 km/hr | 27.340332458 ft/s |
| 50 km/hr | 45.567220764 ft/s |
| 60 km/hr | 54.680664917 ft/s |
| 80 km/hr | 72.907553223 ft/s |
| 100 km/hr | 91.134441528 ft/s |
| 120 km/hr | 109.361329834 ft/s |
| 250 km/hr | 227.83610382 ft/s |
| 500 km/hr | 455.672207641 ft/s |
Frequently asked questions
How do I convert foot per second to kilometers per hour?
Multiply the value in foot per second by 1.09728 to get the result in kilometers per hour. For example, 5 ft/s × 1.09728 = 5.4864 km/hr.
How many kilometers per hour are in 1 foot per second?
1 foot per second (ft/s) is equal to 1.09728 kilometers per hour (km/hr).
How do I convert kilometers per hour back to foot per second?
Use the inverse operation: divide the value in kilometers per hour by 1.09728 to get the result in foot per second.
How accurate is the foot per second to kilometers per hour conversion?
The converter multiplies by the conversion factor 1.09728 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
- BIPM — The International System of Units (SI Brochure, 9th edition)
- NIST Guide to the SI (SP 811), Appendix B.9: Factors for units listed by kind of quantity or field of science
- U.S. Survey Foot: Revised Unit Conversion Factors
- U.S. Standard Atmosphere, 1976 (NOAA-S/T 76-1562), Table 10 - Sea-level values of atmospheric properties
