How do I convert horsepower to watts?

One mechanical horsepower equals 745.7 watts. To convert hp to kW, multiply by 0.7457. For example, a 200 hp engine produces about 149 kW of power.

What is the difference between watts and kilowatts?

One kilowatt (kW) equals 1,000 watts (W). Watts measure power - the rate of energy use. A 100W light bulb uses 100 joules of energy per second. Household appliances typically range from a few watts to several kilowatts.

How is horsepower measured?

Mechanical horsepower (hp) was defined by James Watt as the power to lift 550 pounds by one foot in one second. It's commonly used for engines and motors. There's also metric horsepower (PS) at 735.5 W.

What is BTU/hour used for?

BTU/hour measures heating or cooling power, commonly used for HVAC systems and air conditioners. A typical window AC unit might be rated at 5,000-12,000 BTU/h. 1 ton of cooling = 12,000 BTU/h.

How much power does an electric car motor have?

Electric car motors typically range from 100 kW (134 hp) for economy cars to over 750 kW (1,000+ hp) for performance vehicles. Unlike gas engines, electric motors deliver instant torque.

Power Converter

Professional power converter. Convert between watts, kilowatts, megawatts, horsepower, and BTU/hour for electrical, mechanical, and HVAC applications.

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