Convert Gram square millimetres to Slug square inches
Convert Gram square millimetres (g·mm²) to Slug square inches (slug·in²) instantly and accurately.
Conversion Formula
slug·in² = g·mm² × 1.062089495e-7
About Gram square millimetres
The gram square millimetre (g·mm²) equals 10⁻⁹ kg·m², the natural unit for MEMS gyroscope resonators and micro-fabricated spinning structures. CubeSat reaction wheel rotors range 1-50 g·mm²; chip-scale IMU proof masses sit below 1 g·mm². Watchmaking balance wheels and miniature turbine blades also fall in this range. 1 g·mm² = 10⁻⁹ kg·m² = 0.01 g·cm².
About Slug square inches
The slug square inch (slug·in²) equals ≈9.415 × 10⁻³ kg·m², used in US aerospace guidance and flight mechanics. Pre-metric inertial navigation unit (INU) test reports and NACA stability-derivative tables listed gyroscope platform inertia in slug·in²; US autopilot servo actuator sizing also uses slug·in². 1 slug·in² ≈9.415 × 10⁻³ kg·m² ≈32.17 lb·in².
Quick Reference Table
| Gram square millimetres (g·mm²) | Slug square inches (slug·in²) |
|---|---|
| 1 g·mm² | 1.062 × 10-7 slug·in² |
| 2 g·mm² | 2.124 × 10-7 slug·in² |
| 5 g·mm² | 5.31 × 10-7 slug·in² |
| 10 g·mm² | 1.062 × 10-6 slug·in² |
| 25 g·mm² | 2.655 × 10-6 slug·in² |
| 50 g·mm² | 5.31 × 10-6 slug·in² |
| 100 g·mm² | 1.062 × 10-5 slug·in² |