Horsepower is a unit of measurement for power that is equal to 550 foot-pounds per second in imperial units. It is roughly equivalent to 746 watts. The horsepower is expressed in SI units as hp. It's a term that's typically used to describe an engine's power. It is a measurement of the rate at which mechanical energy is consumed. The formula for calculating horsepower is as follows:
Horsepower = (T * N) / 5252 hp
Where,
The torque is represented by the letter T
The number N denotes the rate