Convert Ergs per square centimetre to Millinewtons per metre
Convert Ergs per square centimetre (erg/cm²) to Millinewtons per metre (mN/m) instantly and accurately.
Conversion Formula
mN/m = erg/cm² × 1
About Ergs per square centimetre
The erg per square centimetre (erg/cm²) equals 10⁻³ N/m - the CGS surface energy unit (1 erg/cm² = 10⁻⁷ J / 10⁻⁴ m² = 10⁻³ J/m² = 10⁻³ N/m). Standard in solid surface-energy measurements: polyethylene ~31 erg/cm²; glass ~300-500 erg/cm²; metals 500-2 000 erg/cm². 1 erg/cm² = 1 mN/m = 1 dyn/cm.
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
| Ergs per square centimetre (erg/cm²) | Millinewtons per metre (mN/m) |
|---|---|
| 1 erg/cm² | 1 mN/m |
| 2 erg/cm² | 2 mN/m |
| 5 erg/cm² | 5 mN/m |
| 10 erg/cm² | 10 mN/m |
| 25 erg/cm² | 25 mN/m |
| 50 erg/cm² | 50 mN/m |
| 100 erg/cm² | 100 mN/m |