How to convert joules to foot-pounds
ft⋅lbf = J × 0.7375621493Multiply the value in joules by 0.7375621493. To go the other way, multiply by 1.355817948 (or divide by 0.7375621493).
A joule is smaller than a foot-pound: it takes 1.355817948 joules to make one foot-pound.
Worked examples
- 1 joule1 J × 0.7375621493 = 0.7375621493 ft⋅lbf
- 5 joules5 J × 0.7375621493 = 3.687810746 ft⋅lbf
- 10 joules10 J × 0.7375621493 = 7.375621493 ft⋅lbf
- 20 joules20 J × 0.7375621493 = 14.75124299 ft⋅lbf
- 100 joules100 J × 0.7375621493 = 73.75621493 ft⋅lbf
Joules to foot-pounds conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Joules (J) | Foot-pounds (ft⋅lbf) |
|---|---|
| 0.1 J | 0.073756215 ft⋅lbf |
| 0.25 J | 0.18439054 ft⋅lbf |
| 0.5 J | 0.36878107 ft⋅lbf |
| 1 J | 0.73756215 ft⋅lbf |
| 2 J | 1.4751243 ft⋅lbf |
| 3 J | 2.2126864 ft⋅lbf |
| 4 J | 2.9502486 ft⋅lbf |
| 5 J | 3.6878107 ft⋅lbf |
| 6 J | 4.4253729 ft⋅lbf |
| 7 J | 5.162935 ft⋅lbf |
| 8 J | 5.9004972 ft⋅lbf |
| 9 J | 6.6380593 ft⋅lbf |
| 10 J | 7.3756215 ft⋅lbf |
| Joules (J) | Foot-pounds (ft⋅lbf) |
|---|---|
| 12 J | 8.8507458 ft⋅lbf |
| 15 J | 11.063432 ft⋅lbf |
| 20 J | 14.751243 ft⋅lbf |
| 25 J | 18.439054 ft⋅lbf |
| 30 J | 22.126864 ft⋅lbf |
| 40 J | 29.502486 ft⋅lbf |
| 50 J | 36.878107 ft⋅lbf |
| 75 J | 55.317161 ft⋅lbf |
| 100 J | 73.756215 ft⋅lbf |
| 250 J | 184.39054 ft⋅lbf |
| 500 J | 368.78107 ft⋅lbf |
| 1,000 J | 737.56215 ft⋅lbf |
About the units
Joule (J)
The SI unit of energy: the work done by a force of one newton over one metre, or one watt for one second. Lifting an apple by one metre takes about 1 J.
Foot-pound (ft⋅lbf)
The foot-pound (ft⋅lbf) is a unit of energy in the US customary system. One foot-pound equals 1.355817948 joules (J).
Frequently asked questions
How many foot-pounds are in one joule?
There are 0.7375621493 foot-pounds in one joule, and this value is exact by definition.
How do I convert joules to foot-pounds?
Multiply the number of joules by 0.7375621493. For example, 10 J × 0.7375621493 = 7.375621493 ft⋅lbf.
How many joules are in one foot-pound?
One foot-pound equals 1.355817948 joules. That is the reverse factor, 1 ÷ 0.7375621493.
What is 10 joules in foot-pounds?
10 J = 7.375621493 ft⋅lbf.
Is this J to ft⋅lbf converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.