Convert pound square inch to kilogram square meter instantly. Type in either field — results update live.
Selected lb·in² values converted to kg·m² using the exact factor from this tool.
| lb·in² | kg·m² |
|---|---|
| 0.01 | 0.0000029264 |
| 0.1 | 0.000029264 |
| 1 | 0.00029264 |
| 2 | 0.00058528 |
| 3 | 0.00087792 |
| 5 | 0.0014632 |
| 10 | 0.0029264 |
| 20 | 0.0058528 |
| 50 | 0.014632 |
| 100 | 0.029264 |
| 1,000 | 0.29264 |
Exact conversion factors in both directions, plus a worked example.
1 lb·in² = 0.00029264 kg·m²
1 kg·m² = 3417.1678512849 lb·in²
To convert pound square inch to kilogram square meter, multiply by 0.00029264.
To convert kilogram square meter to pound square inch, multiply by 3417.1678512849.
Example: convert 10 lb·in² to kg·m²
10 × 0.00029264 = 0.0029264 kg·m²
Short background on the units used in this conversion.
The pound square inch (lb·in²) is an imperial inertia unit — about 4.45×10⁻⁴ kg·m² per lb·in², common for compact rotating components.
Pound square inches describe gear inertia, pulley masses, and small motor armatures in US mechanical design references.
The kilogram square meter (kg·m²) is the SI unit of moment of inertia — rotational mass resistance about an axis, in kg times m².
Kilogram square meters describe flywheels, rotating machinery, and structural dynamics in SI engineering calculations.
kg·m² = lb·in² × 0.00029264lb·in² = kg·m² × 3,417.1678512849, using the same exact factors as this converter.Jump to any moment of inertia conversion starting from pound square inch — including the reverse direction and every other unit in our dataset.