Force and Torque
lbf·intolbf·ft
Convert pound-force inches (lbf·in) to pound-force feet (lbf·ft).
Factor1 lbf·in = 0.08333333 lbf·ft
Converter
lbf·in
Accepts numbers or expressions, e.g. 150 + 14.7
Result
lbf·ft
Rendered to 6 significant figures.
Formula
Formula
lbf·ft = lbf·in × 0.08333333
Multiply any value in pound-force inches by 0.08333333 to obtain the value in pound-force feet.
Worked example
Convert 12 lbf·in to lbf·ft.
- 01Start with 12 lbf·in.
- 02Multiply by the conversion factor: 12 × 0.08333333 = 1 lbf·ft.
Result12 lbf·in = 1 lbf·ft
Conversion table
| lbf·in | lbf·ft |
|---|---|
| 1 | 0.083333 |
| 2 | 0.16667 |
| 5 | 0.41667 |
| 10 | 0.83333 |
| 20 | 1.6667 |
| 50 | 4.1667 |
| 100 | 8.3333 |
| 200 | 16.667 |
| 500 | 41.667 |
| 1000 | 83.333 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from lbf·in to lbf·ft?
1 lbf·in equals 0.08333333 lbf·ft. To convert, multiply the value in pound-force inches by 0.08333333.
How do I convert 1 lbf·in to lbf·ft?
1 lbf·in = 0.0833333 lbf·ft. For any value, multiply by 0.08333333.
How do I convert lbf·ft back to lbf·in?
Divide by the same factor — or equivalently, multiply by 12. So 1 lbf·ft = 12 lbf·in.
When would I need to convert pound-force inch to pound-force foot?
Torque conversions between lbf·in and lbf·ft are needed in fastener specification, mechanical equipment design, drivetrain analysis and lifting/rigging calculations. Newton-metre (N·m) is the SI standard; lbf·ft and lbf·in dominate US fastener and machinery datasheets; kgf·m appears in legacy metric documentation. Display symbol is N·m — never the abbreviation "nm", which denotes nanometre.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).