Convert engine power and kilowatts
Spec sheets split between hp, PS, and kW — and the two 'horsepowers' don't even match.
Tools used in this guide
The job
A European car is quoted in kW or PS, an American one in hp, an electric motor in watts. The trap: hp (745.7 W) and PS (735.5 W) differ by ~1.4 %, which is why '150 hp' and '150 PS' are not the same car.
Value plus unit
Enter W, kW, MW, hp, PS, or BTU/h and read all six. For heating/cooling work the BTU/h column answers 'how many watts is this air conditioner'.
Worked example
150 PS = 147.9 hp = 110.3 kW. A 1,500 W heater ≈ 5,118 BTU/h. The differences are small but real when comparing specs.
Where it stops
Pure unit conversion — it says nothing about where on the curve that power is made, or about torque. Engine character is not in the number.