Convert Joules per square metre to Pounds-force per inch
Convert Joules per square metre (J/m²) to Pounds-force per inch (lbf/in) instantly and accurately.
Conversion Formula
lbf/in = J/m² × 0.005710147155
About Joules per square metre
The joule per square metre (J/m²) equals 1 N/m exactly - the surface-fracture-energy (G_c) form used in fracture mechanics and wetting thermodynamics. Values: silica glass ~0.8 J/m²; aluminium ~1.4 J/m²; silicon carbide ~10-25 J/m²; tough metals 50-100 J/m². 1 J/m² = 1 N/m = 1 000 mJ/m².
About Pounds-force per inch
The pound-force per inch (lbf/in) equals (0.45359237 × 9.80665) / 0.0254 ≈ 175.127 N/m, used in US industrial specifications for adhesive peel strength, hot-melt bond lines, and surface tension of molten metals. 1 lbf/in = 12 lbf/ft ≈ 175.127 N/m ≈ 175 127 mN/m.
Quick Reference Table
| Joules per square metre (J/m²) | Pounds-force per inch (lbf/in) |
|---|---|
| 1 J/m² | 0.00571015 lbf/in |
| 2 J/m² | 0.0114203 lbf/in |
| 5 J/m² | 0.0285507 lbf/in |
| 10 J/m² | 0.0571015 lbf/in |
| 25 J/m² | 0.142754 lbf/in |
| 50 J/m² | 0.285507 lbf/in |
| 100 J/m² | 0.571015 lbf/in |