Enter the horsepower to convert it to kilowatts using this calculator.

Horsepower to Kilowatt Formula

The following formula is used to convert horsepower to kilowatts.

kW = hp * 0.745699872


  • kW is the power in kilowatts
  • hp is the power in horsepower

To convert horsepower to kilowatts, multiply the power in horsepower by the conversion factor of 0.745699872.

What is Horsepower?

Horsepower is a unit of power in the British system of measurement. It is commonly used to measure the power of engines and motors. One horsepower is defined as the ability to move 550 pounds one foot in one second, or 33,000 foot-pounds per minute.

What is a Kilowatt?

A kilowatt (kW) is a unit of power in the International System of Units (SI). It is equivalent to one thousand watts. Power in kilowatts is often used to express the output of engines and the power of electric motors, tools, machines, and heaters.

How to Convert Horsepower to Kilowatts?

The following steps outline how to convert horsepower to kilowatts.

  1. First, determine the power in horsepower (hp).
  2. Next, use the conversion formula: kW = hp * 0.745699872.
  3. Finally, calculate the power in kilowatts (kW).
  4. After inserting the horsepower value and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variable as an example problem to test your knowledge.

power in horsepower (hp) = 100 hp

The result in kilowatts is 74.570 kW.