Convert horsepower (550 ft*lbf/s) to joule/second

Please provide values below to convert horsepower (550 ft*lbf/s) [hp] to joule/second [J/s], or Convert joule/second to horsepower (550 ft*lbf/s).

1 hp = 745.7 J/s. To convert horsepower (550 ft*lbf/s) to joule/second, multiply the value by 745.7; to go the other way, divide by it (1 J/s = 0.00134102185866 hp). Both units measure power and appear in everyday as well as technical calculations, so switching between them quickly is often useful.

Quick Reference

  • 1 hp = 745.7 J/s
  • 1 J/s = 0.00134102185866 hp
  • 10 hp = 7457 J/s
  • 100 hp = 74570 J/s

How to Convert Horsepower (550 Ft*lbf/s) to Joule/second

1 hp = 745.7 J/s

Example: convert 15 hp to J/s:
15 hp = 15 × 745.7 J/s = 11185.5 J/s

Horsepower (550 Ft*lbf/s) to Joule/second Conversion Table

horsepower (550 ft*lbf/s) joule/second
1 hp 745.7 J/s
2 hp 1491.4 J/s
3 hp 2237.1 J/s
5 hp 3728.5 J/s
10 hp 7457 J/s
20 hp 14914 J/s
50 hp 37285 J/s
100 hp 74570 J/s
500 hp 372850 J/s
1000 hp 745700 J/s

Horsepower (550 Ft*lbf/s)

Horsepower (hp) is a unit of power measurement, defined as 550 foot-pounds of work per second (ft·lbf/s).

History/Origin

The horsepower was developed by James Watt in the late 18th century to compare the power of steam engines with draft horses, and it became a standard unit for measuring engine power.

Current Use

Horsepower is still widely used today to rate the power of engines and motors in automotive, aviation, and industrial applications.


Joule/second

The joule per second (J/s) is a unit of power representing the rate at which energy is transferred or converted, equivalent to one watt.

History/Origin

The joule per second has been used as a measure of power since the adoption of the SI system, where the watt (W) became the standard unit of power, with 1 J/s = 1 W.

Current Use

J/s is primarily used in scientific and engineering contexts to quantify power, especially in physics and electrical engineering, often interchangeably with watts.

Frequently Asked Questions

What is 1 horsepower (550 ft*lbf/s) in joule/second?

1 horsepower (550 ft*lbf/s) (hp) = 745.7 joule/second (J/s).

How do you convert horsepower (550 ft*lbf/s) to joule/second?

Multiply the horsepower (550 ft*lbf/s) value by 745.7. For example, 25 hp × 745.7 = 18642.5 J/s.

What is 10 horsepower (550 ft*lbf/s) in joule/second?

10 hp = 7457 J/s.

Which unit is larger, the horsepower (550 ft*lbf/s) or the joule/second?

The horsepower (550 ft*lbf/s) is the larger unit: 1 hp = 745.7 J/s.

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