Convert Kilogram square metres to Ounce square inches
Convert Kilogram square metres (kg·m²) to Ounce square inches (oz·in²) instantly and accurately.
Conversion Formula
oz·in² = kg·m² × 54674.75037
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.
About Ounce square inches
The ounce square inch (oz·in²) equals ≈1.829 × 10⁻⁵ kg·m², used in US precision instrument engineering for light rotating components. Pre-metric American gyroscope gimbal assemblies and US MIL-SPEC instrument servo actuators cited inertia in oz·in²; NACA gyroscope test reports use oz·in² for small rotating elements. 1 oz·in² ≈1.829 × 10⁻⁵ kg·m² = 16 oz·in² per lb·in².
Quick Reference Table
| Kilogram square metres (kg·m²) | Ounce square inches (oz·in²) |
|---|---|
| 1 kg·m² | 54674.8 oz·in² |
| 2 kg·m² | 109350 oz·in² |
| 5 kg·m² | 273374 oz·in² |
| 10 kg·m² | 546748 oz·in² |
| 25 kg·m² | 1366870 oz·in² |
| 50 kg·m² | 2733740 oz·in² |
| 100 kg·m² | 5467480 oz·in² |