Section Properties Calculator

Shape Configuration

Select a shape and enter its dimensions

Rectangle Properties

Width (b)

Width must be a positive number

Height (h)

Height must be a positive number

Circle Properties

Radius (r)

Radius must be a positive number

Semicircle Properties

Radius (r)

Radius must be a positive number

Trapezoid Properties

Top Width (b₁)

Top width must be a positive number

Bottom Width (b₂)

Bottom width must be a positive number

Height (h)

Height must be a positive number

T-Section Properties

Flange Width (b)

Flange width must be a positive number

Flange Thickness (t_f)

Flange thickness must be a positive number

Web Height (h_w)

Web height must be a positive number

Web Thickness (t_w)

Web thickness must be a positive number

Inverted T-Section Properties

Flange Width (b)

Flange width must be a positive number

Flange Thickness (t_f)

Flange thickness must be a positive number

Web Height (h_w)

Web height must be a positive number

Web Thickness (t_w)

Web thickness must be a positive number

Ellipse Properties

Major Axis (a)

Major axis must be a positive number

Minor Axis (b)

Minor axis must be a positive number

Oval Properties

Width (w)

Width must be a positive number

Height (h)

Height must be a positive number

Single-Cell Box Properties

Width (b)

Width must be a positive number

Height (h)

Height must be a positive number

Wall Thickness (t)

Wall thickness must be a positive number

Multi-Cell Box Properties

Width (b)

Width must be a positive number

Height (h)

Height must be a positive number

Wall Thickness (t)

Wall thickness must be a positive number

Number of Cells

Number of cells must be a positive integer

Voided Slab Properties

Width (b)

Width must be a positive number

Height (h)

Height must be a positive number

Void Diameter (d)

Void diameter must be a positive number

Number of Voids

Number of voids must be a positive integer

Void Spacing (s)

Void spacing must be a positive number

User-Defined Polygon

Coordinates (x,y)

Invalid coordinates format

Hole Coordinates (x,y)

Invalid hole coordinates format

Shape Visualization

Interactive preview with real-time updates

Calculated Properties

Results based on current inputs

Basic Properties

Property	Value
Area (A)	-
Centroid x̄	-
Centroid ȳ	-
Perimeter (P)	-

Moments of Inertia

Property	Value
Ix	-
Iy	-
Ixy	-
J (Polar)	-

Principal Properties

Property	Value
I₁ (Max)	-
I₂ (Min)	-
θp (Angle)	-

Section Modulus & Radius

Property	Value
Sx	-
Sy	-
rx	-
ry	-