Convert Poundal feet to Newton metres
Convert Poundal feet (pdl·ft) to Newton metres (N·m) instantly and accurately.
Conversion Formula
N·m = pdl·ft × 0.04214011009
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 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
| Poundal feet (pdl·ft) | Newton metres (N·m) |
|---|---|
| 1 pdl·ft | 0.0421401 N·m |
| 2 pdl·ft | 0.0842802 N·m |
| 5 pdl·ft | 0.210701 N·m |
| 10 pdl·ft | 0.421401 N·m |
| 25 pdl·ft | 1.0535 N·m |
| 50 pdl·ft | 2.10701 N·m |
| 100 pdl·ft | 4.21401 N·m |