Convert Gram square metres to Kilogram square metres
Convert Gram square metres (g·m²) to Kilogram square metres (kg·m²) instantly and accurately.
Conversion Formula
kg·m² = g·m² × 0.001
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 Kilogram square metres
The kilogram square metre (kg·m²) is the SI coherent derived unit of moment of inertia. It defines the rotational analogue of mass in Newton's second law: τ = Iα (torque in N·m, angular acceleration in rad/s²). A solid disc of 10 kg and 0.5 m radius has I = 1.25 kg·m². Electric motor rotors: 0.001-10 kg·m². Wind turbine rotors: 10⁶-10⁸ kg·m². 1 kg·m² = 10 000 kg·cm² ≈0.7376 slug·ft².
Quick Reference Table
| Gram square metres (g·m²) | Kilogram square metres (kg·m²) |
|---|---|
| 1 g·m² | 0.001 kg·m² |
| 2 g·m² | 0.002 kg·m² |
| 5 g·m² | 0.005 kg·m² |
| 10 g·m² | 0.01 kg·m² |
| 25 g·m² | 0.025 kg·m² |
| 50 g·m² | 0.05 kg·m² |
| 100 g·m² | 0.1 kg·m² |