Free
Free online section properties calculator
Compute section properties for common prismatic shapes right in your browser — no install. Get area, moment of inertia, section modulus and more, with the full formulas and a clean PDF report. Free with a StructuralMind account.
app.structuralmind.com

What you can do
Common prismatic shapes
Choose from a library of common prismatic shapes.
Area & inertia
Area, centroid and moments of inertia.
Section moduli & radii
Elastic section moduli and radii of gyration.
Full formulas shown
Every value comes with its full formula — nothing hidden.
Instant results
Computed in the browser, in seconds.
Clean PDF report
Export the properties and formulas as a clean PDF.
Publish & Verify
Create a public link, publish and share your work for review.
Questions
- Is the section properties calculator free?
- Yes. Create a free StructuralMind account and compute section properties in your browser at no cost.
- Do I need to install anything?
- No — it runs in your browser. Nothing to download or install.
- Which shapes are supported?
- Common prismatic shapes. More calculations are added every month.
- Do I get the formulas?
- Yes. Every property is shown with its full formula, and you can export a clean PDF. You can also generate a public link and publish your work for review.
Start calculating in minutes.
Sign up, pick a calculation, and produce your first auditable report.