Convert Ounce-force inches to Pound-force feet
Convert Ounce-force inches (ozf·in) to Pound-force feet (lbf·ft) instantly and accurately.
Conversion Formula
lbf·ft = ozf·in × 0.005208333333
About Ounce-force inches
The ounce-force inch (ozf·in) equals ≈ 7.062 × 10⁻³ N·m, the traditional US unit for small instrument and servo motors. Brushless DC motors for drones, precision positioning stages, and US industrial servo catalogs (Maxon, Pittman) specify stall torque in ozf·in. A typical NEMA 17 stepper motor delivers 80-220 ozf·in. 16 ozf·in = 1 lbf·in. 1 ozf·in ≈ 7.062 × 10⁻³ N·m ≈ 72.0 gf·cm.
About Pound-force feet
The pound-force foot (lbf·ft) equals ≈ 1.35582 N·m, the dominant torque unit in North American automotive and mechanical engineering. SAE engine performance tests, US vehicle lug-nut torque specs (80-100 lbf·ft), and American industrial gearbox catalogs all use lbf·ft. V8 truck engines produce 400-600 lbf·ft; diesel pickups exceed 900 lbf·ft. 1 lbf·ft ≈ 1.35582 N·m = 12 lbf·in ≈ 192 ozf·in.
Quick Reference Table
| Ounce-force inches (ozf·in) | Pound-force feet (lbf·ft) |
|---|---|
| 1 ozf·in | 0.00520833 lbf·ft |
| 2 ozf·in | 0.0104167 lbf·ft |
| 5 ozf·in | 0.0260417 lbf·ft |
| 10 ozf·in | 0.0520833 lbf·ft |
| 25 ozf·in | 0.130208 lbf·ft |
| 50 ozf·in | 0.260417 lbf·ft |
| 100 ozf·in | 0.520833 lbf·ft |