How many watts are equivalent to one horsepower?

One horsepower is equivalent to 746 watts. This conversion is based on the definition established in engineering and physics, where one horsepower is defined as the amount of energy required to perform one foot-pound of work in one second. The watt is the standard unit of power in the International System of Units (SI), which measures energy transfer over time.

This conversion is widely used in various applications, from electrical engineering to mechanical systems, to equate power output of engines and motors. Understanding this relationship is crucial for professionals in the field, as it allows for accurate assessments of power requirements and comparisons between different systems, such as electrical motors and internal combustion engines.