Watt to Horsepower (550 ft·lbf/s) Conversion

Convert between Watt and Horsepower (550 ft·lbf/s) quickly and accurately.

W
hp (550 ft·lbf/s)

How to Convert Watt to Horsepower (550 ft·lbf/s)

Conversion Formula

1 W = 0.001 hp (550 ft·lbf/s)
1 hp (550 ft·lbf/s) = 745.7 W

Example

Convert 15 W to hp (550 ft·lbf/s):

15 W = 15 × 0.001 hp (550 ft·lbf/s) = 0.02 hp (550 ft·lbf/s)

Unit Information

Learn about the power units you're converting between

Watt

W

Definition

The watt (W) is the SI derived unit of power, representing the rate of energy transfer or conversion. It is defined as one joule per second and is the standard unit for measuring electrical power, mechanical power, and thermal power in scientific and engineering applications.

History/Origin

The watt was named after James Watt, the Scottish engineer who improved the steam engine. It was adopted as the SI unit of power in 1960, replacing the horsepower as the standard unit for power measurements in the International System of Units.

Current Use

Widely used in electrical engineering, mechanical engineering, and physics for measuring power consumption, generation, and transfer. Essential for calculating energy efficiency, electrical load, and power ratings of devices and systems.

Multiplier

1

Offset

0

Horsepower (550 ft·lbf/s)

hp (550 ft·lbf/s)

Definition

The horsepower (550 ft·lbf/s) is a unit of power equal to 550 foot-pounds per second, representing the power output of a horse. It is commonly used in automotive engineering, mechanical engineering, and industrial applications for measuring the power output of engines, motors, and mechanical systems.

History/Origin

The horsepower (550 ft·lbf/s) was originally defined by James Watt in the 18th century to compare the power output of steam engines to that of horses. It became a standard unit for measuring mechanical power and is still widely used in automotive and industrial applications.

Current Use

Widely used in automotive engineering, mechanical engineering, and industrial applications for measuring the power output of engines, motors, and mechanical systems. Essential for engine specifications and mechanical power ratings.

Multiplier

745.7

Offset

0

Watt to Horsepower (550 ft·lbf/s) Conversion Table

Watt [W] Horsepower (550 ft·lbf/s) [hp (550 ft·lbf/s)]
1 W 0.001341 hp (550 ft·lbf/s)
10 W 0.01341 hp (550 ft·lbf/s)
25 W 0.033526 hp (550 ft·lbf/s)
50 W 0.067051 hp (550 ft·lbf/s)
100 W 0.134102 hp (550 ft·lbf/s)
0 W 0E+0 hp (550 ft·lbf/s)
-10 W -0.01341 hp (550 ft·lbf/s)
-40 W -0.053641 hp (550 ft·lbf/s)

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