How to convert joules to foot-pounds
Formula: ft⋅lbf = J × 0.737562
Worked example: 1,000 J → 1,000 × 0.737562 = 737.562 ft⋅lbf
Joules to foot-pounds conversion chart
| Joules (J) | Foot-pounds (ft⋅lbf) |
|---|---|
| 1 J | 0.737562 ft⋅lbf |
| 2 J | 1.47512 ft⋅lbf |
| 3 J | 2.21269 ft⋅lbf |
| 4 J | 2.95025 ft⋅lbf |
| 5 J | 3.68781 ft⋅lbf |
| 6 J | 4.42537 ft⋅lbf |
| 7 J | 5.16294 ft⋅lbf |
| 8 J | 5.9005 ft⋅lbf |
| 9 J | 6.63806 ft⋅lbf |
| 10 J | 7.37562 ft⋅lbf |
| 12 J | 8.85075 ft⋅lbf |
| 15 J | 11.0634 ft⋅lbf |
| 20 J | 14.7512 ft⋅lbf |
| 25 J | 18.4391 ft⋅lbf |
| 30 J | 22.1269 ft⋅lbf |
| 40 J | 29.5025 ft⋅lbf |
| 50 J | 36.8781 ft⋅lbf |
| 75 J | 55.3172 ft⋅lbf |
| 100 J | 73.7562 ft⋅lbf |
| 250 J | 184.391 ft⋅lbf |
| 500 J | 368.781 ft⋅lbf |
| 1,000 J | 737.562 ft⋅lbf |
What is a joule?
The joule is the SI unit of energy: the work done by a force of one newton over one meter, or one watt for one second. It is small; lifting an apple about one meter takes roughly one joule.
What is a foot-pound?
The foot-pound is the work done by a one-pound force over one foot, about 1.356 joules. It measures the energy of bullets and air guns in the US; the same unit also expresses torque on wrenches and engines.