Convert Foot-Pounds per Minute to Calories per Hour
Convert Foot-Pounds per Minute (ft⋅lbf/min) to Calories per Hour (cal/h) instantly and accurately.
Conversion Formula
cal/h = ft⋅lbf/min × 19.42989321
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 Calories per Hour
One calorie per hour (cal/h) equals exactly 0.001163 W - the rate of transferring one thermochemical calorie (4.1868 J) per hour. A resting adult generates ~70-80 W ≈ 60,000-70,000 cal/h of heat. The unit appears in European and Asian HVAC standards for small-appliance heat loads and in laboratory calorimetry reporting metabolic activity of small organisms. Calorimetric enzyme assays also express catalytic heat in cal/h per unit enzyme. 1 cal/h = 0.001163 W.
Quick Reference Table
| Foot-Pounds per Minute (ft⋅lbf/min) | Calories per Hour (cal/h) |
|---|---|
| 1 ft⋅lbf/min | 19.4299 cal/h |
| 2 ft⋅lbf/min | 38.8598 cal/h |
| 5 ft⋅lbf/min | 97.1495 cal/h |
| 10 ft⋅lbf/min | 194.299 cal/h |
| 25 ft⋅lbf/min | 485.747 cal/h |
| 50 ft⋅lbf/min | 971.495 cal/h |
| 100 ft⋅lbf/min | 1942.99 cal/h |