Horsepower (electric) to kilowatts conversion calculator above calculates how many kilowatts are in 'X' horsepower (electric) (where 'X' is the number of horsepower (electric) to convert to kilowatts). In order to convert a value from horsepower (electric) to kilowatts (from hp to kW) simply type the number of hp to be converted to kW and then click on the 'convert' button.