Convert Poundals per inch to Micronewtons per metre
Convert Poundals per inch (pdl/in) to Micronewtons per metre (µN/m) instantly and accurately.
Conversion Formula
µN/m = pdl/in × 5443108.44
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 Micronewtons per metre
The micronewton per metre (µN/m) equals 10⁻⁶ N/m, used in precision thin-film capillarity studies and cryogenic surface-tension measurements. Liquid helium-4 at 2 K has a surface tension of ~0.37 mN/m (370 µN/m); liquid ³He near absolute zero is even lower. Numerically identical to µJ/m². 1 µN/m = 10⁻³ mN/m.
Quick Reference Table
| Poundals per inch (pdl/in) | Micronewtons per metre (µN/m) |
|---|---|
| 1 pdl/in | 5443110 µN/m |
| 2 pdl/in | 10886200 µN/m |
| 5 pdl/in | 27215500 µN/m |
| 10 pdl/in | 54431100 µN/m |
| 25 pdl/in | 136078000 µN/m |
| 50 pdl/in | 272155000 µN/m |
| 100 pdl/in | 544311000 µN/m |