Question: what is the difference between wattage and horsepower?
Answer: The main difference between Watt and Horsepower is that the Watt is a SI derived unit of power and Horsepower is a unit of power. ... Two common definitions being used today are the mechanical horsepower (or imperial horsepower), which is about 745.7 watts, and the metric horsepower, which is approximately 735.5 watts.