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.