I Retângulo

I = bh³/12.
Created by
Renato Passos, Eng. de Software
Reviewed by
Renato Passos, Eng. de Software

Last updated: Apr 18, 2026

I
416,67 cm⁴

Formula

I retângulo

About this calculator

The rectangle moment of inertia calculator is a practical tool for engineers and physics students who need to calculate the moment of inertia of rectangles in different situations.

The calculation formula is simple and easy to remember: I = bh³/12. Simply enter the rectangle's dimensions (length and width) and the calculator will do the rest.

The moment of inertia is a fundamental quantity in mechanical engineering, as it determines an object's resistance to changes in motion. With this calculator, you can quickly and accurately calculate the moment of inertia of rectangles.

Remember that this calculator is ideal for situations where you need to calculate the moment of inertia of rectangles in different orientations and dimensions. However, it's essential to verify if the application conditions are within the scope of the formula.

Frequently asked questions

What is the moment of inertia?

The moment of inertia is a measure of an object's resistance to changes in motion. It is a fundamental quantity in mechanical engineering and is important for calculating an object's stability and behavior in motion.

Why is it important to calculate the moment of inertia of rectangles?

Calculating the moment of inertia of rectangles is important in mechanical engineering to determine an object's resistance to changes in motion and to verify if the application conditions are within the scope of the formula.

What dimensions do I need to enter into the calculator?

You need to enter the rectangle's dimensions, including the length and width.

Can I calculate the moment of inertia of rectangles in different orientations?

Yes, this calculator allows you to calculate the moment of inertia of rectangles in different orientations and dimensions.

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