Convert Foot-Pounds per Second to Boiler Horsepower
Convert Foot-Pounds per Second (ft⋅lbf/s) to Boiler Horsepower (BHP) instantly and accurately.
Conversion Formula
BHP = ft⋅lbf/s × 0.0001381999363
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 Boiler Horsepower
One boiler horsepower (BHP) ≈ 9,810 W = 33,475 BTU/h - the power to evaporate 34.5 lb of water per hour at 212°F, standardised by ASME for rating steam boilers. A small office building needs 10-50 BHP; a hospital or large plant 200-2,000 BHP. Critically, 1 BHP is ~13.1× larger than 1 mechanical horsepower (746 W) - a dangerous confusion when specifying heating equipment. 1 BHP ≈ 9,810.6 W.
Quick Reference Table
| Foot-Pounds per Second (ft⋅lbf/s) | Boiler Horsepower (BHP) |
|---|---|
| 1 ft⋅lbf/s | 0.0001382 BHP |
| 2 ft⋅lbf/s | 0.0002764 BHP |
| 5 ft⋅lbf/s | 0.000691 BHP |
| 10 ft⋅lbf/s | 0.001382 BHP |
| 25 ft⋅lbf/s | 0.003455 BHP |
| 50 ft⋅lbf/s | 0.00691 BHP |
| 100 ft⋅lbf/s | 0.01382 BHP |