Force and Torque
lbf·fttolbf·in
Convert pound-force feet (lbf·ft) to pound-force inches (lbf·in).
Factor1 lbf·ft = 12 lbf·in
Converter
lbf·ft
Accepts numbers or expressions, e.g. 150 + 14.7
Result
lbf·in
Rendered to 6 significant figures.
Formula
Formula
lbf·in = lbf·ft × 12
Multiply any value in pound-force feet by 12 to obtain the value in pound-force inches.
Worked example
Convert 1 lbf·ft to lbf·in.
- 01Start with 1 lbf·ft.
- 02Multiply by the conversion factor: 1 × 12 = 12 lbf·in.
Result1 lbf·ft = 12 lbf·in
Conversion table
| lbf·ft | lbf·in |
|---|---|
| 1 | 12 |
| 2 | 24 |
| 5 | 60 |
| 10 | 120 |
| 20 | 240 |
| 50 | 600 |
| 100 | 1200 |
| 200 | 2400 |
| 500 | 6000 |
| 1000 | 12000 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from lbf·ft to lbf·in?
1 lbf·ft equals 12 lbf·in. To convert, multiply the value in pound-force feet by 12.
How do I convert 1 lbf·ft to lbf·in?
1 lbf·ft = 12 lbf·in. For any value, multiply by 12.
How do I convert lbf·in back to lbf·ft?
Divide by the same factor — or equivalently, multiply by 0.08333333. So 1 lbf·in = 0.0833333 lbf·ft.
When would I need to convert pound-force foot to pound-force inch?
Torque conversions between lbf·ft and lbf·in 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).