Convert Slug square feet to Pound square inches
Convert Slug square feet (slug·ft²) to Pound square inches (lb·in²) instantly and accurately.
Conversion Formula
lb·in² = slug·ft² × 4633.062992
About Slug square feet
The slug square foot (slug·ft²) equals ≈1.3558 kg·m², the fundamental moment of inertia unit in US customary aerodynamics and spacecraft attitude dynamics. Pre-SI spacecraft inertia tensors are tabulated in slug·ft² - NASA Apollo CSM principal moments ranged 12 000-90 000 slug·ft². USAF flight manuals and NACA stability reports use slug·ft². 1 slug·ft² ≈1.3558 kg·m² = 32.174 lb·ft².
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
| Slug square feet (slug·ft²) | Pound square inches (lb·in²) |
|---|---|
| 1 slug·ft² | 4633.06 lb·in² |
| 2 slug·ft² | 9266.13 lb·in² |
| 5 slug·ft² | 23165.3 lb·in² |
| 10 slug·ft² | 46330.6 lb·in² |
| 25 slug·ft² | 115827 lb·in² |
| 50 slug·ft² | 231653 lb·in² |
| 100 slug·ft² | 463306 lb·in² |