Convert Pound-force inches to Newton metres
Convert Pound-force inches (lbf·in) to Newton metres (N·m) instantly and accurately.
Conversion Formula
N·m = lbf·in × 0.112984829
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.
About Newton metres
The newton metre (N·m) is the SI coherent derived unit of torque and bending moment. Car engine torque is commonly quoted in N·m - a family hatchback delivers 150-250 N·m; a performance saloon 400-600 N·m. Fastener pre-load torques, EV traction-motor ratings, and structural connection bolt specifications are all given in N·m. 1 N·m = 100 N·cm = 1000 N·mm ≈ 0.7376 lbf·ft ≈ 8.851 lbf·in.
Quick Reference Table
| Pound-force inches (lbf·in) | Newton metres (N·m) |
|---|---|
| 1 lbf·in | 0.112985 N·m |
| 2 lbf·in | 0.22597 N·m |
| 5 lbf·in | 0.564924 N·m |
| 10 lbf·in | 1.12985 N·m |
| 25 lbf·in | 2.82462 N·m |
| 50 lbf·in | 5.64924 N·m |
| 100 lbf·in | 11.2985 N·m |