Force and Torque
ozf·intolbf·ft
Convert ounce-force inches (ozf·in) to pound-force feet (lbf·ft).
Factor1 ozf·in = 0.005208333 lbf·ft
Converter
ozf·in
Accepts numbers or expressions, e.g. 150 + 14.7
Result
lbf·ft
Rendered to 6 significant figures.
Formula
Formula
lbf·ft = ozf·in × 0.005208333
Multiply any value in ounce-force inches by 0.005208333 to obtain the value in pound-force feet.
Worked example
Convert 192 ozf·in to lbf·ft.
- 01Start with 192 ozf·in.
- 02Multiply by the conversion factor: 192 × 0.005208333 = 1 lbf·ft.
Result192 ozf·in = 1 lbf·ft
Conversion table
| ozf·in | lbf·ft |
|---|---|
| 1 | 0.0052083 |
| 2 | 0.010417 |
| 5 | 0.026042 |
| 10 | 0.052083 |
| 20 | 0.10417 |
| 50 | 0.26042 |
| 100 | 0.52083 |
| 200 | 1.0417 |
| 500 | 2.6042 |
| 1000 | 5.2083 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ozf·in to lbf·ft?
1 ozf·in equals 0.005208333 lbf·ft. To convert, multiply the value in ounce-force inches by 0.005208333.
How do I convert 1 ozf·in to lbf·ft?
1 ozf·in = 0.00520833 lbf·ft. For any value, multiply by 0.005208333.
How do I convert lbf·ft back to ozf·in?
Divide by the same factor — or equivalently, multiply by 192. So 1 lbf·ft = 192 ozf·in.
When would I need to convert ounce-force inch to pound-force foot?
Torque conversions between ozf·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).