Convert foot-pound to joule
Please provide values below to convert foot-pound [ft*lbf] to joule [J], or Convert joule to foot-pound.
How to Convert Foot-Pound to Joule
1 ft*lbf = 1.35581795 J
Example: convert 15 ft*lbf to J:
15 ft*lbf = 15 × 1.35581795 J = 20.33726925 J
Foot-Pound to Joule Conversion Table
| foot-pound | joule |
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Foot-Pound
A foot-pound is a unit of energy or work equal to the work done when a force of one pound-force is exerted over a distance of one foot.
History/Origin
The foot-pound has been used primarily in the United States and the United Kingdom as a customary unit of energy, originating from imperial and US customary measurement systems, before the widespread adoption of the SI system.
Current Use
Today, the foot-pound is still used in certain fields such as engineering, automotive, and aerospace industries in the US for expressing torque and energy, although the SI unit joule is more common internationally.
Joule
The joule (J) is the SI unit of energy, work, and heat, defined as the work done when a force of one newton acts over a distance of one meter.
History/Origin
The joule was named after James Prescott Joule in 1889 to honor his work in energy and thermodynamics. It was adopted as the SI unit of energy in 1948.
Current Use
The joule is widely used in physics, engineering, and everyday contexts to quantify energy, work, and heat in various applications, including electricity, mechanics, and thermodynamics.