Convert Ounce-force inches to Newton millimetres
Convert Ounce-force inches (ozf·in) to Newton millimetres (N·mm) instantly and accurately.
Conversion Formula
N·mm = ozf·in × 7.061551814
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 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
| Ounce-force inches (ozf·in) | Newton millimetres (N·mm) |
|---|---|
| 1 ozf·in | 7.06155 N·mm |
| 2 ozf·in | 14.1231 N·mm |
| 5 ozf·in | 35.3078 N·mm |
| 10 ozf·in | 70.6155 N·mm |
| 25 ozf·in | 176.539 N·mm |
| 50 ozf·in | 353.078 N·mm |
| 100 ozf·in | 706.155 N·mm |