Joules to Foot-pounds Converter
How to convert joules to foot-pounds
foot-pounds = joules ÷ 1.35581795
To convert joules to foot-pounds, divide the number of joules by 1.35581795.
1 J = 0.737562149 ft·lbf
Examples
- 1,000 J ÷ 1.35581795 = 737.562149 ft·lbf
- One kilocalorie: 4,184 J ÷ 1.35581795 = 3,085.96003 ft·lbf
Good to know
This is the foot-pound as a unit of energy. The same name is commonly used for torque (properly the pound-foot, lbf·ft), which is a different quantity and converts to newton-meters, not joules.
Joules to foot-pounds conversion table
| Joules (J) | Foot-pounds (ft·lbf) |
|---|---|
| 1 J | 0.737562149 ft·lbf |
| 2 J | 1.4751243 ft·lbf |
| 5 J | 3.68781075 ft·lbf |
| 10 J | 7.37562149 ft·lbf |
| 20 J | 14.751243 ft·lbf |
| 50 J | 36.8781075 ft·lbf |
| 100 J | 73.7562149 ft·lbf |
| 200 J | 147.51243 ft·lbf |
| 250 J | 184.390537 ft·lbf |
| 500 J | 368.781075 ft·lbf |
| 1,000 J | 737.562149 ft·lbf |
| 2,000 J | 1,475.1243 ft·lbf |
| 2,500 J | 1,843.90537 ft·lbf |
| 5,000 J | 3,687.81075 ft·lbf |
| 10,000 J | 7,375.62149 ft·lbf |
Unit definitions
- Joule (J)
- The joule is the SI unit of energy, equal to the work done by a force of one newton over one meter, or one watt for one second.
- Foot-pound (ft·lbf)
- A foot-pound (foot-pound force) is the work done by a force of one pound-force over a distance of one foot, exactly 1.3558179483314004 joules. It is used in the United States for muzzle energy and mechanical work.