Horsepower (mechanical)

hp

Mechanical/imperial horsepower (550 ft·lbf/s)

About Horsepower (mechanical) (hp)

The mechanical horsepower equals approximately 745.7 watts and was defined by James Watt to compare steam engine output to draft horses. Car engines, outboard motors, and lawnmowers in North America are rated in horsepower. A typical family sedan produces 150-200 hp, while Formula 1 engines exceed 1,000 hp.

Category
Power
Symbol
hp
Also known as
HP hp(I) mechanical horsepower
01

CONVERT TO

Watt W Kilowatt kW Megawatt MW Gigawatt GW Horsepower (metric) PS BTU per Hour BTU/h Foot-pound per Second ft·lbf/s Ton of Refrigeration TR

Frequently Asked Questions

What is a Horsepower (mechanical) (hp)?

Mechanical/imperial horsepower (550 ft·lbf/s)

How many Watt (W) are in one Horsepower (mechanical) (hp)?

One Horsepower (mechanical) (hp) equals 745.6999 Watt (W).

How many Kilowatt (kW) are in one Horsepower (mechanical) (hp)?

One Horsepower (mechanical) (hp) equals 0.7457 Kilowatt (kW).

How many Megawatt (MW) are in one Horsepower (mechanical) (hp)?

One Horsepower (mechanical) (hp) equals 0.0007456999 Megawatt (MW).

How do I convert Horsepower (mechanical) to Watt?

To convert Horsepower (mechanical) to Watt, multiply the value by 745.6999 (1 hp = 745.6999 W).