ft/s
foot per second
Speedexact by definition
The foot per second is exactly 0.3048 m/s, following from the exact definition of the foot. It is used in American ballistics, open-channel hydraulics and machine design, where velocities are naturally sized in feet. The factor is exact by definition.
Watch out: Sixty miles per hour is exactly 88 ft/s, a conversion worth memorising because it is exact rather than approximate.
| 1 ft/s | 0.3048 m/s |
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