Convert Foot-Pounds per Second to Metric Horsepower
Convert Foot-Pounds per Second (ft⋅lbf/s) to Metric Horsepower (PS) instantly and accurately.
Conversion Formula
PS = ft⋅lbf/s × 0.001843399392
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.
About Metric Horsepower
The metric horsepower (PS/CV/pk) equals exactly 75 kgf·m/s = 735.49875 W - the European equivalent of mechanical horsepower, defined as lifting 75 kg by 1 m/s. It was the DIN 66036 standard for European automotive ratings until the EU mandated kW. A 100 PS car produces 73.55 kW; 200 PS = 147.1 kW. The ~1.4% difference from mechanical hp (745.7 W) means a 100 PS car rates as 98.6 mechanical hp. German car advertising still shows PS parenthetically alongside kW. 1 PS = 735.49875 W.
Quick Reference Table
| Foot-Pounds per Second (ft⋅lbf/s) | Metric Horsepower (PS) |
|---|---|
| 1 ft⋅lbf/s | 0.0018434 PS |
| 2 ft⋅lbf/s | 0.0036868 PS |
| 5 ft⋅lbf/s | 0.009217 PS |
| 10 ft⋅lbf/s | 0.018434 PS |
| 25 ft⋅lbf/s | 0.046085 PS |
| 50 ft⋅lbf/s | 0.09217 PS |
| 100 ft⋅lbf/s | 0.18434 PS |