Convert Poundal feet to Newton millimetres
Convert Poundal feet (pdl·ft) to Newton millimetres (N·mm) instantly and accurately.
Conversion Formula
N·mm = pdl·ft × 42.14011009
About Poundal feet
The poundal foot (pdl·ft) equals ≈ 0.04214 N·m, the torque unit of the absolute foot-pound-second system, where force is in poundals (1 pdl = 1 lb·ft/s²) rather than pound-force. It appeared in pre-SI British and American engineering texts and NACA aerodynamic stability reports alongside slug inertia values. 1 pdl·ft = 0.45359237 × 0.3048² N·m ≈ 0.04214 N·m ≈ 0.3730 lbf·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
| Poundal feet (pdl·ft) | Newton millimetres (N·mm) |
|---|---|
| 1 pdl·ft | 42.1401 N·mm |
| 2 pdl·ft | 84.2802 N·mm |
| 5 pdl·ft | 210.701 N·mm |
| 10 pdl·ft | 421.401 N·mm |
| 25 pdl·ft | 1053.5 N·mm |
| 50 pdl·ft | 2107.01 N·mm |
| 100 pdl·ft | 4214.01 N·mm |