Convert Slug square feet to Kilogram square millimetres
Convert Slug square feet (slug·ft²) to Kilogram square millimetres (kg·mm²) instantly and accurately.
Conversion Formula
kg·mm² = slug·ft² × 1355817.948
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 Kilogram square millimetres
The kilogram square millimetre (kg·mm²) equals 10⁻⁶ kg·m², widely used in CAD software and precision mechanical engineering. SolidWorks, CATIA, and Siemens NX report mass moment of inertia in kg·mm² for gear blanks, pulley hubs, and precision spindle assemblies. Industrial small servo motor rotors: 100-10 000 kg·mm². 1 kg·mm² = 10⁻⁶ kg·m² = 10 g·cm² = 0.01 kg·cm².
Quick Reference Table
| Slug square feet (slug·ft²) | Kilogram square millimetres (kg·mm²) |
|---|---|
| 1 slug·ft² | 1355820 kg·mm² |
| 2 slug·ft² | 2711640 kg·mm² |
| 5 slug·ft² | 6779090 kg·mm² |
| 10 slug·ft² | 13558200 kg·mm² |
| 25 slug·ft² | 33895400 kg·mm² |
| 50 slug·ft² | 67790900 kg·mm² |
| 100 slug·ft² | 135582000 kg·mm² |