Convert Metric Horsepower to Calories per Hour
Convert Metric Horsepower (PS) to Calories per Hour (cal/h) instantly and accurately.
Conversion Formula
cal/h = PS × 632415.0903
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.
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
| Metric Horsepower (PS) | Calories per Hour (cal/h) |
|---|---|
| 1 PS | 632415 cal/h |
| 2 PS | 1264830 cal/h |
| 5 PS | 3162080 cal/h |
| 10 PS | 6324150 cal/h |
| 25 PS | 15810400 cal/h |
| 50 PS | 31620800 cal/h |
| 100 PS | 63241500 cal/h |