Energy Converter
Result
... Foot-pound = ... Joule
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Foot-pound to Joule Converter
Use this page to convert foot-pound values into joule, with background details, formulas, a worked example, and a quick conversion table.
Conversion formula
1 ft lbf = 1.3558179483314 J
1 J = 0.737562149277266 ft lbf
Example: 120 ft lbf = 162.698153799768 J
Foot-pound
A foot-pound is the work done by one pound-force through one foot.
History: It developed from customary force and length measures.
Current use: Foot-pounds are used in mechanical work, torque references, and ballistics.
Also written as ft lbf, ft-lb, ft lb, foot pound, foot pounds.
Joule
A joule is the work done by a force of one newton through one meter.
History: It is named after James Prescott Joule.
Current use: Joules are used in physics, engineering, and energy calculations.
Also written as J, joules.
Foot-pound to Joule table
| Foot-pound [ft lbf] | Joule [J] |
|---|
| 0.01 ft lbf | 0.013558179483314 J |
| 0.1 ft lbf | 0.13558179483314 J |
| 1 ft lbf | 1.3558179483314 J |
| 2 ft lbf | 2.7116358966628 J |
| 5 ft lbf | 6.779089741657 J |
| 10 ft lbf | 13.558179483314 J |
| 20 ft lbf | 27.116358966628 J |
| 50 ft lbf | 67.79089741657 J |
| 100 ft lbf | 135.58179483314 J |
Frequently asked questions
How many Joule (J) are in one Foot-pound (ft lbf)?
One Foot-pound equals 1.3558179483314 Joule.
How do you convert Foot-pound to Joule?
Multiply the Foot-pound value by 1.3558179483314 to get the result in Joule.
How do you convert Joule back to Foot-pound?
Multiply the Joule value by 0.737562149277266 to get back to Foot-pound.
What is 120 Foot-pound in Joule?
120 Foot-pound equals 162.698153799768 Joule.
