What is horsepower (mechanical)?

Mechanical horsepower is a traditional unit of power equal to approximately 745.7 watts. It is widely used in automotive and industrial contexts to express engine output, pump capacity, and motor ratings.

What is milliwatt?

A milliwatt is a unit of power equal to one thousandth of a watt. It is used in low-power electronics, wireless communication systems, laser specifications, and medical device power ratings.

Worked examples

1 horsepower (mechanical) = 745,699.87158227 milliwatt

1 milliwatt = 0.001 watt

More Power conversions

• Convert horsepower (mechanical) to watt
• Convert horsepower (mechanical) to kilowatt
• Convert horsepower (mechanical) to megawatt
• Convert horsepower (mechanical) to gigawatt
• Convert horsepower (mechanical) to milliwatt
• Convert horsepower (mechanical) to microwatt
• Convert horsepower (mechanical) to BTU per hour
• Convert horsepower (mechanical) to kilocalorie per hour
• Convert horsepower (mechanical) to ton of refrigeration

Assumption: horsepower values use mechanical horsepower.