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Horsepower to Kilowatts (HP to kW) Converter

Convert instantly between mechanical Horsepower (HP/BHP), Electric Vehicle Kilowatts (kW), European Metric PS/CV, and foot-pounds per minute.

Calculated Results

Kilowatts (kW Electric Vehicle Equivalent)
223.71 kW
300.00 Mechanical Horsepower (HP)
Metric Horsepower (PS / DIN)
304.16 PS
Pferdestärke (European rating)
Foot-Pounds / Minute
9,900,000 ft·lb/min
Watt's original definition (33,000 ft-lb/min)
BTU / Hour Heating
763,500 BTU / hr
Thermal energy conversion
Total Watts (W)
223,710 Watts
SI unit of power (Joules/sec)
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Frequently Asked Questions

What is the exact conversion factor between Horsepower and Kilowatts?

1 Mechanical Horsepower (HP) = 0.74569987 Kilowatts (745.7 Watts). To convert HP to kW, multiply by 0.7457. To convert kW to HP, multiply by 1.341.

What is the difference between Mechanical HP and Metric Horsepower (PS)?

Mechanical HP (Imperial/US) was defined by James Watt as 33,000 foot-pounds per minute (745.7 W). Metric Horsepower (PS in Germany, CV in France/Italy) is defined as 75 kilogram-meters per second (735.5 W). Therefore, 1 mechanical HP equals 1.0139 metric PS.

Why are electric vehicle motors rated in kW?

In international automotive standards (ECE regulations) and physics, the Kilowatt is the official SI unit for electrical and mechanical power. EV batteries output electricity in kilowatt-hours (kWh) and their electric drive motors naturally rate in kilowatts.

What is Brake Horsepower (BHP)?

Brake Horsepower is the raw mechanical power generated directly at the engine's crankshaft without losses from drivetrain components (transmission, driveshaft, differential, axles). Wheel Horsepower (WHP) measured on a chassis dynamometer is typically 12% to 18% lower due to parasitic friction.