Moment of Inertia Converter: convert kg·m², lb·ft², lb·in², slug·ft², and other common rotational inertia units for engineering and physics.
Convert moment of inertia units instantly — kg·m² to lb·ft², lb·in² to kg·m², or lb·ft² to lb·in². Perfect for rotational dynamics, mechanical design, flywheel calculations, and engineering analysis.
Most Common Conversion Factors
| kg·m² | g·cm² | lb·ft² | lb·in² | |
|---|---|---|---|---|
| 1 kg·m² | 1 | 1 x 107 | 23.73036 | 3417.17 |
| 1 g·cm² | 1 x 10-7 | 1 | 2.373 x 10-6 | 3.417 x 10-4 |
| 1 lb·ft² | 0.04214 | 421400.73 | 1 | 144 |
| 1 lb·in² | 2.926 x 10-4 | 2926.39 | 0.006944 | 1 |
Moment of Inertia Converter FAQ
A moment of inertia converter converts rotational inertia units such as kg·m², kg·cm², lb·ft², and lb·in². It is useful for rotational dynamics, mechanical engineering, flywheels, motors, and physics calculations.
Enter a value, choose kg·m² as the source unit, and choose lb·ft² as the target unit. This is commonly used when converting SI inertia values into imperial engineering units.
The moment of inertia measures how difficult it is to change the rotation of an object around an axis. It depends on both the mass and how that mass is distributed relative to the axis.
The standard SI unit is kg·m². Other units include kg·cm², lb·ft², lb·in², and oz·in², depending on the application and measurement system.
Use a moment of inertia converter when working with rotating systems such as motors, flywheels, gears, robotics, mechanical components, or physics problems involving rotational motion.
