Free Online Cross Section Property Calculator

Powered by WebStructural

Welcome to the Cross Section Property Calculator. A free, online cross section calculator to determine moment of inertia, centroids, cross section area and polar moment of inertia. Select a shape and enter dimensions to get started.

2. Change dimensions to recalculate



Property Value

Upgrade now to unlock the full power of WebStructural

Comprehensive Reports

Easy to read, printable and comprehensive design reports. AISC Steel and NDS Wood Design LRFD and ASD Design Checks and Load Combinations.

About the Cross Section Calculator

Cross Sections

This calculator is includes closed form solutions for the area, centroid, moment of inertia and polar moment inertia for a variety of common cross-sections used in structural design. I beams, C shapes, T shapes, pipes, rods and channel shapes are common AISC steel and aluminum shapes. Use the rectangle shape to calculate the moment of inertia for common wood shapes.

Cross Section Properties

Use Ix and Iy (moment's of inertia) to calculate forces and deflections in common steel and wood beams.

Use the area to determine the weight of a beam based on the density of the material..

Steel, Wood and Concrete Beam Calculator

If you have a steel, wood or concrete beam with complex boundary conditions and loads you can use this tool to calculate cross section properties for use in design calculations. If you're looking for quick and easy structural analysis software to design steel and wood beams, with full design checks via AISC 360, NDS, ASD and LRFD try out our free Beam Design tool. If you don't need design checks, or plan to design by hand check out our Shear & Moment Calculator to help speed up your design calcs.

Free AISC Steel and NDS Wood Beam Design

Our goal with WebStructural is to give back to the engineering community by providing a free, cloud-based steel and wood beam design app. There's nothing to install, simply navigate to our Free Steel and Wood Beam Designer and start designing! If you like the tool and decide you'd like to save and print projects you can upgrade for $19 monthly. There's no long-term contract. Cancel anytime, we'll save your projects and you can resubscribe later to access them.

More Free Online Calculators

We make elegant, powerful structural engineering and structural analysis software. Try some of our other free tools: