Convert Ergs per square centimetre to Millijoules per square metre
Convert Ergs per square centimetre (erg/cm²) to Millijoules per square metre (mJ/m²) instantly and accurately.
Conversion Formula
mJ/m² = 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 Millijoules per square metre
The millijoule per square metre (mJ/m²) equals 10⁻³ N/m - the SI surface-energy-per-area form, numerically identical to mN/m and dyn/cm. The preferred notation in materials science for solid surface energy and work of adhesion: polypropylene ~30 mJ/m², epoxy ~45 mJ/m², steel ~2 000 mJ/m². 1 mJ/m² = 1 mN/m = 1 dyn/cm.
Quick Reference Table
| Ergs per square centimetre (erg/cm²) | Millijoules per square metre (mJ/m²) |
|---|---|
| 1 erg/cm² | 1 mJ/m² |
| 2 erg/cm² | 2 mJ/m² |
| 5 erg/cm² | 5 mJ/m² |
| 10 erg/cm² | 10 mJ/m² |
| 25 erg/cm² | 25 mJ/m² |
| 50 erg/cm² | 50 mJ/m² |
| 100 erg/cm² | 100 mJ/m² |