Electrical
kW ↔ Horsepower
Convert kilowatts to mechanical horsepower (hp) and metric PS
kW
Result
Mechanical horsepower100,58 hp
Metric horsepower (PS)101,97 PS
Kilowatts75 kW
How does it work?
Kilowatt (kW) is the SI unit of power. 1 kW = 1000 W.
Mechanical horsepower (hp) is defined as exactly 745.69987 W. Used in the US and UK automotive markets.
Metric horsepower (PS, Pferdestärke) is defined as exactly 735.49875 W. Used in European automotive markets — German, French, and other European car brands typically express engine power in PS.
Formulas: kW → hp: ×1.34102 | kW → PS: ×1.35962 | hp → kW: ×0.74570
Example
Example 1: A vehicle engine is rated at 110 kW.
→ Mechanical hp: 110 × 1.34102 = 147.5 hp
→ Metric PS: 110 × 1.35962 = 149.6 PS
Example 2: An old Volvo has 140 PS.
→ kW: 140 / 1.35962 = 102.9 kW
Assumptions
- •Mechanical hp = 745.69987 W (exact by IEEE definition)
- •Metric PS = 735.49875 W (exact by definition)
- •Electrical hp (746 W) used in US NEC — not included here