Engineering Converters
Moment of Inertia Converter
Convert mass moment of inertia between kilogram-square-meters, pound-square-feet and slug-square-feet, used in rotor dynamics and flywheel calculations.
MOMENT OF INERTIA CONVERTER — INSTANT RESULT
All supported units — moment of inertia
| Unit | Symbol | To kilogram·meter² (kg·m²) | From kilogram·meter² (kg·m²) |
|---|---|---|---|
| Kilogram·meter² | kg·m² | 1 kg·m² = 1 kg·m² | 1 kg·m² = 1 kg·m² |
| Gram·centimeter² | g·cm² | 1 g·cm² = 1e-07 kg·m² | 1 kg·m² = 10,000,000 g·cm² |
| Kilogram·centimeter² | kg·cm² | 1 kg·cm² = 0.0001 kg·m² | 1 kg·m² = 10,000 kg·cm² |
| Pound·foot² | lb·ft² | 1 lb·ft² = 0.04214011 kg·m² | 1 kg·m² = 23.7303604 lb·ft² |
| Pound·inch² | lb·in² | 1 lb·in² = 0.0002926397 kg·m² | 1 kg·m² = 3,417.1713544 lb·in² |
| Ounce·inch² | oz·in² | 1 oz·in² = 1.8289978e-05 kg·m² | 1 kg·m² = 54,674.7513857 oz·in² |
| Slug·foot² | slug·ft² | 1 slug·ft² = 1.35581796 kg·m² | 1 kg·m² = 0.73756214 slug·ft² |
| Kilogram-force·meter·second² | kgf·m·s² | 1 kgf·m·s² = 9.80665 kg·m² | 1 kg·m² = 0.10197162 kgf·m·s² |
| Pound-force·foot·second² | lbf·ft·s² | 1 lbf·ft·s² = 1.35581796 kg·m² | 1 kg·m² = 0.73756214 lbf·ft·s² |
Popular moment of inertia conversions
Frequently asked questions
What units does this moment of inertia converter support?
It supports 9 units: Kilogram·meter² (kg·m²), Gram·centimeter² (g·cm²), Kilogram·centimeter² (kg·cm²), Pound·foot² (lb·ft²), Pound·inch² (lb·in²), Ounce·inch² (oz·in²), Slug·foot² (slug·ft²), Kilogram-force·meter·second² (kgf·m·s²), Pound-force·foot·second² (lbf·ft·s²).
What is the base unit of moment of inertia?
The SI reference unit is the kilogram·meter² (kg·m²). Every conversion is computed by converting the input to the base unit, then from the base unit to the target unit, so chained precision is preserved.
Is this converter accurate?
Yes. Conversion factors use exact legal definitions where they exist (for example 1 in = 25.4 mm exactly) and CODATA/ISO constants otherwise. Results are shown to up to 10 significant figures.