Convert Poundals per inch to Newtons per metre
Convert Poundals per inch (pdl/in) to Newtons per metre (N/m) instantly and accurately.
Conversion Formula
N/m = pdl/in × 5.44310844
About Poundals per inch
The poundal per inch (pdl/in) equals 0.45359237 × 12 N/m = 5.44310844 N/m exactly (since 0.3048/0.0254 = 12). A foot-pound-second (FPS) unit rarely encountered in modern practice but found in historical US engineering tables predating SI adoption. 1 pdl/in = 5.44310844 N/m ≈ 5 443 mN/m.
About Newtons per metre
The newton per metre (N/m) is the SI derived unit of surface tension, equal to one joule per square metre. Adopted in all modern scientific publications and engineering codes. Water at 20 °C: 0.0728 N/m; mercury: 0.485 N/m; liquid iron at 1 550 °C: ~1.8 N/m. 1 N/m = 1 J/m² = 1 000 mN/m = 1 000 dyn/cm.
Quick Reference Table
| Poundals per inch (pdl/in) | Newtons per metre (N/m) |
|---|---|
| 1 pdl/in | 5.44311 N/m |
| 2 pdl/in | 10.8862 N/m |
| 5 pdl/in | 27.2155 N/m |
| 10 pdl/in | 54.4311 N/m |
| 25 pdl/in | 136.078 N/m |
| 50 pdl/in | 272.155 N/m |
| 100 pdl/in | 544.311 N/m |