The joule (J) is the SI derived unit of energy, equal to the work done when a force of one newton acts over one meter.
Joules to Foot-pounds
Convert Joule (J) to Foot-pound (ft-lb) instantly with an exact formula, conversion table, and FAQ.
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Convert joules (J) to foot-pounds (ft-lb) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A foot-pound (ft-lb) is the work done by one pound-force acting through a distance of one foot, commonly used in mechanical and engineering calculations.
ft-lb = J × 0.7375621493
Results update instantly for Joules to Foot-pounds conversions.
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Formula
ft-lb = J × 0.7375621493
J = ft-lb × 1.355817948
Conversion table
| 1 J | 0.737562 ft-lb |
| 5 J | 3.687811 ft-lb |
| 10 J | 7.375621 ft-lb |
| 20 J | 14.751243 ft-lb |
| 50 J | 36.878107 ft-lb |
| 100 J | 73.756215 ft-lb |
| 500 J | 368.781075 ft-lb |
| 1000 J | 737.562149 ft-lb |
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How the formula works
Both joule and foot-pound measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in joules by 0.7375621493 to get foot-pounds. To reverse the conversion, multiply a foot-pound value by 1.355817948 to get back to joules.
Frequently asked questions
What is Joule (J)?
The joule (J) is the SI derived unit of energy, equal to the work done when a force of one newton acts over one meter.
What is Foot-pound (ft-lb)?
A foot-pound (ft-lb) is the work done by one pound-force acting through a distance of one foot, commonly used in mechanical and engineering calculations.
How do I convert joules to foot-pounds?
Multiply the joule value by 0.7375621493 to get the equivalent in foot-pounds. For example, 5 J × 0.7375621493 = 3.687811 ft-lb.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 0.7375621493 is an exact, non-rounded value.
Can I convert foot-pounds back to joules?
Yes. Divide the foot-pound value by 0.7375621493, or multiply it by 1.355817948, to get joules.
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About converting joules to foot-pounds
The joule (J) is the SI derived unit of energy, equal to the work done when a force of one newton acts over one meter. A foot-pound (ft-lb) is the work done by one pound-force acting through a distance of one foot, commonly used in mechanical and engineering calculations.
Use this calculator to move between joules and foot-pounds accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.