Convert Poundals per inch to Millinewtons per metre

Convert Poundals per inch (pdl/in) to Millinewtons per metre (mN/m) instantly and accurately.

Poundals per inch (pdl/in)
Millinewtons per metre (mN/m)

Conversion Formula

mN/m = pdl/in × 5443.10844

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 Millinewtons per metre

The millinewton per metre (mN/m) equals 10⁻³ N/m, the most widely used practical unit for liquid surface tension worldwide. Water at 20 °C: 72.8 mN/m; ethanol: 22.1 mN/m; mercury: 485 mN/m; olive oil: ~32 mN/m. Numerically identical to dyn/cm, erg/cm² and mJ/m². 1 mN/m = 10⁻³ N/m.

Quick Reference Table

Poundals per inch (pdl/in)Millinewtons per metre (mN/m)
1 pdl/in5443.11 mN/m
2 pdl/in10886.2 mN/m
5 pdl/in27215.5 mN/m
10 pdl/in54431.1 mN/m
25 pdl/in136078 mN/m
50 pdl/in272155 mN/m
100 pdl/in544311 mN/m

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