Convert watt to mechanical horsepower

Mechanical Horsepower

Mechanical horsepower (hp), defined as 550 foot-pounds-force per second, is equal to exactly 745.69987 watts. It was introduced by James Watt to compare the output of steam engines to that of draft horses, and became the standard horsepower in the United States and United Kingdom for mechanical and automotive applications. It is distinct from metric horsepower (PS) and boiler horsepower.