Convert Pound-inches to Pound-feet
1 pound-inch (lbf·in) equals 0.08333333333 pound-feet (lbf·ft).
1 lbf·in = 0.08333333333 lbf·ft
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk pound-inch to pound-foot converter to paste a column from Excel.
How to Convert Pound-inch to Pound-foot
- 1 lbf·in = 0.08333333333 lbf·ft
- 1 lbf·ft = 12 lbf·in
- Example: convert 15 lbf·in to lbf·ft: 15 lbf·in = 15 × 0.08333333333 lbf·ft = 1.25 lbf·ft
Formula
lbf·ft = lbf·in ÷ 12
Derivation from SI units:
- 1 lbf·in = 4.4482216152605 N × 0.0254 m = 0.1129848290276 N·m
- 1 lbf·ft = 4.4482216152605 N × 0.3048 m = 1.3558179483314 N·m
- 1 lbf·in = 0.1129848290276 N·m ÷ 1.355817948331 N·m per lbf·ft = 0.08333333333333 lbf·ft
Both units are defined exactly, so the factor is exact. Pound-inch definition: pound-inch; Pound-foot definition: pound-foot.
Worked examples
- 120 lbf·in is 10 lbf·ft.
120 lbf·in × 0.08333333333 = 10 lbf·ft - 300 lbf·in is 25 lbf·ft.
300 lbf·in × 0.08333333333 = 25 lbf·ft
Pound-inch to Pound-foot conversion table
| Pound-inches (lbf·in) | Pound-feet (lbf·ft) |
|---|---|
| 1 lbf·in | 0.08333333333 lbf·ft |
| 5 lbf·in | 0.4166666667 lbf·ft |
| 10 lbf·in | 0.8333333333 lbf·ft |
| 20 lbf·in | 1.666666667 lbf·ft |
| 25 lbf·in | 2.083333333 lbf·ft |
| 30 lbf·in | 2.5 lbf·ft |
| 40 lbf·in | 3.333333333 lbf·ft |
| 50 lbf·in | 4.166666667 lbf·ft |
| 75 lbf·in | 6.25 lbf·ft |
| 100 lbf·in | 8.333333333 lbf·ft |
| 150 lbf·in | 12.5 lbf·ft |
| 200 lbf·in | 16.66666667 lbf·ft |
| 500 lbf·in | 41.66666667 lbf·ft |
Where it's used
Inch-pound values are converted to foot-pounds to set larger torque wrenches. Divide by 12.
Pound-inch to other torque units
| Conversion | 1 lbf·in equals |
|---|---|
| pound-inch to newton-meter | 0.112984829 N·m |
| pound-inch to kilonewton-meter | 0.000112984829 kN·m |
| pound-inch to newton-centimeter | 11.2984829 N·cm |
| pound-inch to pound-foot | 0.08333333333 lbf·ft |
| pound-inch to ounce-inch | 16 ozf·in |
| pound-inch to kilogram-force meter | 0.0115212462 kgf·m |
| pound-inch to kilogram-force centimeter | 1.15212462 kgf·cm |
| pound-inch to dyne-centimeter | 1129848.29 dyn·cm |
Frequently asked questions
How do I convert in-lb to ft-lb?
Divide by 12: 180 in-lb = 15 ft-lb.
How many pound-feet are in 1 pound-inch?
1 lbf·in = 0.08333333333 lbf·ft.
How do I convert pound-inches to pound-feet?
Multiply the value in lbf·in by 0.08333333333, or divide it by 12. For example, 15 lbf·in × 0.08333333333 = 1.25 lbf·ft.
Is the lbf·in to lbf·ft conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "pound-force inch (lbf·in)".
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "pound-force foot (lbf·ft)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Pound-inches to Pound-feet. Retrieved October 17, 2026, from https://scientificconverters.com/torque/pound-inches-to-pound-feet/
IEEE
Scientific Converters, "Convert Pound-inches to Pound-feet," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/torque/pound-inches-to-pound-feet/