Convert Millinewtons per metre to Poundals per inch

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

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

Conversion Formula

pdl/in = mN/m × 0.0001837185518

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.

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.

Quick Reference Table

Millinewtons per metre (mN/m)Poundals per inch (pdl/in)
1 mN/m0.000183719 pdl/in
2 mN/m0.000367437 pdl/in
5 mN/m0.000918593 pdl/in
10 mN/m0.00183719 pdl/in
25 mN/m0.00459296 pdl/in
50 mN/m0.00918593 pdl/in
100 mN/m0.0183719 pdl/in

→ Full Surface Tension Converter