Convert Pound-force feet to Pound-force inches
Convert Pound-force feet (lbf·ft) to Pound-force inches (lbf·in) instantly and accurately.
Conversion Formula
lbf·in = lbf·ft × 12
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.
About Pound-force inches
The pound-force inch (lbf·in) equals ≈ 0.11299 N·m, the dominant US customary unit for motor and machinery documentation. Rockwell Automation, Parker Hannifin, and Allied Motion servo catalogs express stall and rated torques in lbf·in; US machine-tool spindles and conveyor drive gearboxes are also specified in lbf·in. Typical fractional-horsepower motor torques: 5-200 lbf·in. 1 lbf·in ≈ 0.11299 N·m = 16 ozf·in = 1/12 lbf·ft.
Quick Reference Table
| Pound-force feet (lbf·ft) | Pound-force inches (lbf·in) |
|---|---|
| 1 lbf·ft | 12 lbf·in |
| 2 lbf·ft | 24 lbf·in |
| 5 lbf·ft | 60 lbf·in |
| 10 lbf·ft | 120 lbf·in |
| 25 lbf·ft | 300 lbf·in |
| 50 lbf·ft | 600 lbf·in |
| 100 lbf·ft | 1200 lbf·in |