kg·cm²

kilogram square centimeter

Moment of inertiaexact by definition

The kilogram square centimetre is exactly 10⁻⁴ kg·m². It is the standard rotor inertia unit on servo and stepper motor datasheets, where a small servo is a fraction of a kg·cm² and matching load inertia to rotor inertia is the whole sizing exercise.

1 kg·cm² 0.0001 kg·m²