Convert BTU per Minute to Foot-Pounds per Second
Convert BTU per Minute (BTU/min) to Foot-Pounds per Second (ft⋅lbf/s) instantly and accurately.
Conversion Formula
ft⋅lbf/s = BTU/min × 12.9694877
About BTU per Minute
One BTU per minute (BTU/min) ≈ 17.58 W. Fire engineering uses BTU/min for heat release rate (HRR): a burning sofa releases 500-5,000 BTU/min; a flashover room fire 50,000-500,000 BTU/min. US commercial gas burners are rated 500-2,000 BTU/min. NFPA fire suppression standards use BTU/min to match sprinkler flow to HRR. Industrial furnace heating cycles also use this unit. 1 BTU/min = 17.584 W.
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
| BTU per Minute (BTU/min) | Foot-Pounds per Second (ft⋅lbf/s) |
|---|---|
| 1 BTU/min | 12.9695 ft⋅lbf/s |
| 2 BTU/min | 25.939 ft⋅lbf/s |
| 5 BTU/min | 64.8474 ft⋅lbf/s |
| 10 BTU/min | 129.695 ft⋅lbf/s |
| 25 BTU/min | 324.237 ft⋅lbf/s |
| 50 BTU/min | 648.474 ft⋅lbf/s |
| 100 BTU/min | 1296.95 ft⋅lbf/s |