How It Works - Section Properties
+Section Properties Calculator
Calculate area, centroid, moment of inertia, section modulus, and radius of gyration for common shapes.
Section Properties Results
Moment of Inertia (Ix)
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Moment of Inertia (Iy)
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Cross-Sectional Area (A)
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Centroid (from bottom)
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Section Modulus (Sx)
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Section Modulus (Sy)
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Radius of Gyration (rx)
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Radius of Gyration (ry)
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Select a shape and enter dimensions.
Shape Diagram
Key Formulas
| Shape | Ix Formula |
|---|---|
| Rectangle | bh^3 / 12 |
| Circle | pi*d^4 / 64 |
| Hollow Circle | pi*(D^4 - d^4) / 64 |
| I-Beam | Composite calculation |