Convert Pound-force feet to Newton millimetres
Convert Pound-force feet (lbf·ft) to Newton millimetres (N·mm) instantly and accurately.
Conversion Formula
N·mm = lbf·ft × 1355.817948
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 Newton millimetres
The newton millimetre (N·mm) equals 10⁻³ N·m, widely used in mechanical engineering and FEA software. ANSYS, Abaqus, and Siemens NX models built in millimetres report torques in N·mm for dimensional consistency. Fastener torque for M3-M6 screws (typically 0.3-5 N·m range), micro-pump impeller loads, and precision gearbox calibration values are expressed in N·mm. 1 N·mm = 10⁻³ N·m = 0.1 N·cm ≈ 8.851 × 10⁻³ lbf·in.
Quick Reference Table
| Pound-force feet (lbf·ft) | Newton millimetres (N·mm) |
|---|---|
| 1 lbf·ft | 1355.82 N·mm |
| 2 lbf·ft | 2711.64 N·mm |
| 5 lbf·ft | 6779.09 N·mm |
| 10 lbf·ft | 13558.2 N·mm |
| 25 lbf·ft | 33895.4 N·mm |
| 50 lbf·ft | 67790.9 N·mm |
| 100 lbf·ft | 135582 N·mm |