Convert Gram square metres to Pound square inches
Convert Gram square metres (g·m²) to Pound square inches (lb·in²) instantly and accurately.
Conversion Formula
lb·in² = g·m² × 3.417171898
About Gram square metres
The gram square metre (g·m²) equals 10⁻³ kg·m², used for very light rotors with large radii. Lightweight UAV propeller blades, model aircraft propellers, and thin foam circular discs are characterised in g·m²; it bridges g·cm² and kg·m² in laboratory-scale spinning experiments. 1 g·m² = 10⁻³ kg·m² = 10 kg·cm² = 10 000 g·cm².
About Pound square inches
The pound square inch (lb·in²) equals ≈2.926 × 10⁻⁴ kg·m², the standard US customary unit for motor and machinery rotors. Rockwell Automation, Parker Hannifin, and Allied Motion servo sizing catalogs express rotor inertia in lb·in²; US machine-tool spindle and conveyor drive specifications use lb·in². High-speed spindle rotors: 5-50 lb·in². 1 lb·in² ≈2.926 × 10⁻⁴ kg·m² = 1/144 lb·ft².
Quick Reference Table
| Gram square metres (g·m²) | Pound square inches (lb·in²) |
|---|---|
| 1 g·m² | 3.41717 lb·in² |
| 2 g·m² | 6.83434 lb·in² |
| 5 g·m² | 17.0859 lb·in² |
| 10 g·m² | 34.1717 lb·in² |
| 25 g·m² | 85.4293 lb·in² |
| 50 g·m² | 170.859 lb·in² |
| 100 g·m² | 341.717 lb·in² |