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What is one horsepower?

Updated: 8/11/2023
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Wiki User

12y ago

Best Answer

One horsepower is equivalent to 746 watts ( = joules of energy per second) or 550 ft.lb (force) of work per second.

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The horsepower or hp is the Imperial unit of measurement for power.

"Power" is the scientific term used to describe "capacity to perform some work".

These days, in most countries, it has been replaced by an SI unit, the watt (or, in practice, kilowatt).

The term brake horsepower refers to the rated output power of a machine, which is not to be confused with the amount of input power it requires to be able to generate that amount of rated output power.

In the case of a car engine, the brake horsepower (or kilowatts) is the power remaining after all the losses have been taken into account. (Heat emitted, gearbox friction, etc.) In other words, output power (brake power) is input power minus losses.

For more information see the Related link shown below.

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12y ago
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8y ago

1 horsepower = 760 Watts

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