Debug
Grid
Holes

Section analysis

Moments of inertia

Ix:
0
Iy:
0
Ipo:
0

Section geometry

area:
0
x:
0
y:
0

About the Site

The Moment of Inertia Calculator is a simple and fast tool for calculating the moment of inertia of cross-sections for engineering applications. It supports both standard shapes (rectangle, circle, triangle) and arbitrary geometries. You can enter dimensions or define a custom contour — the system instantly calculates Ix, Iy, the polar moment of inertia Ipo, centroid coordinates, and area. All directly in your browser, no registration or installation required.

This calculator is ideal for students, designers, structural engineers, and anyone working with mechanics of materials. Thanks to advanced algorithms and visual rendering, you can immediately see the shape and verify the accuracy of your calculations. It’s a reliable tool for inertia analysis, structural strength assessment, and preparing engineering documentation.

The site also offers articles with step-by-step derivations of moment of inertia formulas for various sections, including integral-based approaches. Use it for free and analyze even complex shapes with just one click.