The typical horsepower (HP) rating of a household washing machine motor varies depending on the specific model and brand. However, most household washing machine motors range between 1/4 HP and 1/2 HP. These motors are designed to provide sufficient power for the washing machine's functions, such as agitating the clothes, spinning the drum, and operating the water pump. It's worth noting that the industry has been transitioning to more energy-efficient and environmentally friendly motors, which may have different power ratings than older models. It's always best to refer to the manufacturer's specifications for the specific washing machine model you are interested in for accurate information.