Convert Microjoules per square metre to Millinewtons per metre
Convert Microjoules per square metre (µJ/m²) to Millinewtons per metre (mN/m) instantly and accurately.
Conversion Formula
mN/m = µJ/m² × 0.001
About Microjoules per square metre
The microjoule per square metre (µJ/m²) equals 10⁻⁶ N/m - the surface-energy-per-area form, numerically identical to µN/m since [J/m²] = [N/m] exactly. Used in surface physics for low-energy interface characterisation and in thermodynamic modelling of cryogenic films. 1 µJ/m² = 1 µN/m = 10⁻³ mJ/m².
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
| Microjoules per square metre (µJ/m²) | Millinewtons per metre (mN/m) |
|---|---|
| 1 µJ/m² | 0.001 mN/m |
| 2 µJ/m² | 0.002 mN/m |
| 5 µJ/m² | 0.005 mN/m |
| 10 µJ/m² | 0.01 mN/m |
| 25 µJ/m² | 0.025 mN/m |
| 50 µJ/m² | 0.05 mN/m |
| 100 µJ/m² | 0.1 mN/m |