Convert Tonne square metres to Ounce square inches
Convert Tonne square metres (t·m²) to Ounce square inches (oz·in²) instantly and accurately.
Conversion Formula
oz·in² = t·m² × 54674750.37
About Tonne square metres
The tonne square metre (t·m²) equals 1000 kg·m², used for large industrial rotors and heavy rotating machinery. A 60-tonne paper-machine calendar roll of 0.5 m radius has I ≈7.5 t·m²; synchronous hydro-generator rotors: 50-2000 t·m²; large marine propulsion shafts: 5-50 t·m². 1 t·m² = 1000 kg·m² ≈737.6 slug·ft² ≈23 730 lb·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
| Tonne square metres (t·m²) | Ounce square inches (oz·in²) |
|---|---|
| 1 t·m² | 54674800 oz·in² |
| 2 t·m² | 109350000 oz·in² |
| 5 t·m² | 273374000 oz·in² |
| 10 t·m² | 546748000 oz·in² |
| 25 t·m² | 1.367 × 109 oz·in² |
| 50 t·m² | 2.734 × 109 oz·in² |
| 100 t·m² | 5.467 × 109 oz·in² |