Convert Foot-Pounds per Minute to Foot-Pounds per Second
Convert Foot-Pounds per Minute (ft⋅lbf/min) to Foot-Pounds per Second (ft⋅lbf/s) instantly and accurately.
Conversion Formula
ft⋅lbf/s = ft⋅lbf/min × 0.01666666667
About Foot-Pounds per Minute
One foot-pound per minute (ft·lbf/min) ≈ 0.02260 W. Its historical importance is large: James Watt rated mill horses at ~33,000 ft·lbf/min sustained output and defined 1 mechanical horsepower as exactly 33,000 ft·lbf/min (= 550 ft·lbf/s). The unit is still used for machine-tool power, hydraulic pump output, and low-speed actuator performance in US customary calculations: torque (ft·lbf) × RPM = power in ft·lbf/min. 1 hp = 33,000 ft·lbf/min.
About Foot-Pounds per Second
One foot-pound per second (ft·lbf/s) ≈ 1.3558 W - the natural power unit in the foot-pound-second (FPS) system. Since 1 mechanical horsepower = exactly 550 ft·lbf/s, the conversion 1 ft·lbf/s = 1/550 hp is exact. Used in FPS structural and fluid dynamics: beam deflection power, pump and turbine output, and ballistic energy-transfer calculations. 19th-century American industry rated waterwheel output in ft·lbf/s before horsepower standardisation. 1 ft·lbf/s = 1.35582 W.
Quick Reference Table
| Foot-Pounds per Minute (ft⋅lbf/min) | Foot-Pounds per Second (ft⋅lbf/s) |
|---|---|
| 1 ft⋅lbf/min | 0.0166667 ft⋅lbf/s |
| 2 ft⋅lbf/min | 0.0333333 ft⋅lbf/s |
| 5 ft⋅lbf/min | 0.0833333 ft⋅lbf/s |
| 10 ft⋅lbf/min | 0.166667 ft⋅lbf/s |
| 25 ft⋅lbf/min | 0.416667 ft⋅lbf/s |
| 50 ft⋅lbf/min | 0.833333 ft⋅lbf/s |
| 100 ft⋅lbf/min | 1.66667 ft⋅lbf/s |