Convert Poncelet to Metric Horsepower
Convert Poncelet (p) to Metric Horsepower (PS) instantly and accurately.
Conversion Formula
PS = p × 1.333333333
About Poncelet
The poncelet is a rare historical unit equal to 100 kgf·m/s = exactly 980.665 W. Proposed by French engineer Jean-Victor Poncelet (1788-1867) as a metric alternative to the horsepower for French engineering practice - the power to lift 100 kg at 1 m/s against gravity. Used in 19th-century French industrial and military engineering (waterwheels, steam engines, horse-operated machinery) before the watt replaced it. At 980.665 W, it sits between the metric horsepower (735.5 W) and the kilowatt (1,000 W). 1 poncelet = 980.665 W.
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.
Quick Reference Table
| Poncelet (p) | Metric Horsepower (PS) |
|---|---|
| 1 p | 1.33333 PS |
| 2 p | 2.66667 PS |
| 5 p | 6.66667 PS |
| 10 p | 13.3333 PS |
| 25 p | 33.3333 PS |
| 50 p | 66.6667 PS |
| 100 p | 133.333 PS |