1 ftlb = 1.35582 J
1 Foot pound (ftlb) = 1.35582 Joule (J).
If you want to reverse convert, use Joule → Foot pound. 1 J = 0.7375610331755 ftlb. You can also explore the full Energy converter page for more cross conversions.
Conversion formula
Foot pound to Joule formula: value in J = value in ftlb × 1.35582.
Joule to Foot pound formula: value in ftlb = value in J × 0.7375610331755.
How to convert Foot pound to Joule
To convert Foot pound to Joule, multiply the value in ftlb by 1.35582. This gives the result in J.
For example, 1 ftlb = 1.35582 J and 10 ftlb = 13.5582 J.
What is Foot pound?
Foot pound (ft·lbf): The work of one pound-force acting through one foot in its direction. 1 ft·lbf ≈ 1.35582 J.
What is Joule?
Joule (J): The SI energy unit connects mechanical work with electrical energy. 1 J = 1 N·m = 1 W·s.
FAQ
How many joule are in 1 foot pound?
There are 1.35582 J in 1 ftlb.
Why can conversion results differ slightly?
Check the unit definition and rounding. US and imperial measures can differ; rounding intermediate values can also change the final digits.
How do I convert foot pound to joule?
Multiply the value in ftlb by 1.35582 to get the value in J.
Foot pound → other Energy units
- 1 foot pound → joule = 1.35582 joule
- 1 foot pound → kilojoule = 0.00135582 kilojoule
- 1 foot pound = 1.35582E-6 megajoule
- 1 foot pound → calorie = 0.32404875717017 calorie
- 1 foot pound → kilocalorie = 0.00032404875717017 kilocalorie
- 1 foot pound → watt hour = 0.00037661666666667 watt hour
- 1 foot pound = 3.7661666666667E-7 kilowatt hour
- 1 foot pound = 3.7661666666667E-10 megawatt hour
- 1 foot pound → british thermal unit = 0.0012850643565295 british thermal unit
- 1 foot pound = 8462362833335.4 mega electron volt
- 1 foot pound = 8.4623628333354E+18 electron volt
Foot pound → Joule Table
The table below shows common values from Foot pound to Joule and the reverse direction for quick reference.
| ftlb | J | Rounded |
|---|---|---|
| 1 ftlb | 1.35582 J | 1.3558 |
| 2 ftlb | 2.71164 J | 2.7116 |
| 3 ftlb | 4.06746 J | 4.0675 |
| 4 ftlb | 5.42328 J | 5.4233 |
| 5 ftlb | 6.7791 J | 6.7791 |
| 10 ftlb | 13.5582 J | 13.5582 |
| 12 ftlb | 16.26984 J | 16.2698 |
| 15 ftlb | 20.3373 J | 20.3373 |
| 20 ftlb | 27.1164 J | 27.1164 |
| 25 ftlb | 33.8955 J | 33.8955 |
| 30 ftlb | 40.6746 J | 40.6746 |
| 40 ftlb | 54.2328 J | 54.2328 |
| 50 ftlb | 67.791 J | 67.7910 |
| 75 ftlb | 101.6865 J | 101.6865 |
| 100 ftlb | 135.582 J | 135.5820 |
| 200 ftlb | 271.164 J | 271.1640 |
| 250 ftlb | 338.955 J | 338.9550 |
| 500 ftlb | 677.91 J | 677.9100 |
| 750 ftlb | 1016.865 J | 1016.8650 |
| 1000 ftlb | 1355.82 J | 1355.8200 |
| 2500 ftlb | 3389.55 J | 3389.5500 |
| 5000 ftlb | 6779.1 J | 6779.1000 |
| 10000 ftlb | 13558.2 J | 13558.2000 |
Joule → Foot pound Table
| J | ftlb | Rounded |
|---|---|---|
| 1 J | 0.7375610331755 ftlb | 0.7376 |
| 2 J | 1.475122066351 ftlb | 1.4751 |
| 3 J | 2.2126830995265 ftlb | 2.2127 |
| 4 J | 2.950244132702 ftlb | 2.9502 |
| 5 J | 3.6878051658775 ftlb | 3.6878 |
| 10 J | 7.375610331755 ftlb | 7.3756 |
| 12 J | 8.8507323981059 ftlb | 8.8507 |
| 15 J | 11.063415497632 ftlb | 11.0634 |
| 20 J | 14.75122066351 ftlb | 14.7512 |
| 25 J | 18.439025829387 ftlb | 18.4390 |
| 30 J | 22.126830995265 ftlb | 22.1268 |
| 40 J | 29.50244132702 ftlb | 29.5024 |
| 50 J | 36.878051658775 ftlb | 36.8781 |
| 75 J | 55.317077488162 ftlb | 55.3171 |
| 100 J | 73.75610331755 ftlb | 73.7561 |
| 200 J | 147.5122066351 ftlb | 147.5122 |
| 250 J | 184.39025829387 ftlb | 184.3903 |
| 500 J | 368.78051658775 ftlb | 368.7805 |
| 750 J | 553.17077488162 ftlb | 553.1708 |
| 1000 J | 737.5610331755 ftlb | 737.5610 |
| 2500 J | 1843.9025829387 ftlb | 1843.9026 |
| 5000 J | 3687.8051658775 ftlb | 3687.8052 |
| 10000 J | 7375.610331755 ftlb | 7375.6103 |
Joule → Foot pound
The reverse value is 1 J = 0.7375610331755 ftlb.