Convert Kilocalories per Hour to Mechanical Horsepower
Convert Kilocalories per Hour (kcal/h) to Mechanical Horsepower (hp) instantly and accurately.
Conversion Formula
hp = kcal/h × 0.00155960869
About Kilocalories per Hour
One kilocalorie per hour (kcal/h) equals exactly 1.163 W. It is the natural unit for human metabolic rate: sedentary adult ~60-70 kcal/h; walking 250-350 kcal/h; vigorous cycling 500-700 kcal/h; competitive rowing ~1,200 kcal/h. Treadmills and exercise bikes display kcal/h directly. Industrial drying and evaporation calcs in older metric systems (especially Asia) used kcal/h for heat duty; 1 Mcal/h = 1.163 kW. 1 kcal/h = 1.163 W.
About Mechanical Horsepower
The mechanical horsepower (hp) is exactly 550 ft·lbf/s ≈ 745.7 W - defined by James Watt by timing mine horses to set a comparable steam engine rating. A typical compact car produces 100-150 hp (75-112 kW); a sports car 300-600 hp; an F1 car ~1,000 hp (745 kW). SAE net horsepower is measured at the flywheel with all accessories fitted. Marine diesel engines, aircraft piston engines, and lawn equipment are still rated in hp. 1 hp = 550 ft·lbf/s = 745.6998715822704 W.
Quick Reference Table
| Kilocalories per Hour (kcal/h) | Mechanical Horsepower (hp) |
|---|---|
| 1 kcal/h | 0.00155961 hp |
| 2 kcal/h | 0.00311922 hp |
| 5 kcal/h | 0.00779804 hp |
| 10 kcal/h | 0.0155961 hp |
| 25 kcal/h | 0.0389902 hp |
| 50 kcal/h | 0.0779804 hp |
| 100 kcal/h | 0.155961 hp |