Cross Section Calculator

Cross Section Calc is a free structural engineering app for quickly checking and exploring cross-section properties.

By entering dimensions, you can instantly calculate section area, second moment of area (moment of inertia), section modulus, and neutral axis position.

The app also includes a powerful reverse calculation feature that determines the minimum required dimensions from a target section modulus (Z) or moment of inertia (I).

This makes it easy to search for efficient cross-sections that satisfy required performance values.

Designed for both engineering education and practical design studies, the app provides a simple and intuitive workflow.

It is lightweight, fast, and fully usable offline.

■ Key Features

• Tap to select cross-section shapes

• Supports 27 section types including rectangular, circular, I-shape, H-shape, T-shape, and more

• Create custom composite sections by combining rectangles

• Save section data

• Instant calculation results while entering dimensions

- Section area

- Second moment of area (moment of inertia)

- Section modulus

- Neutral axis position

• Reverse calculation from required section modulus (Z)

• Reverse calculation from required moment of inertia (I)

• Helps find minimum cross-section dimensions that satisfy required performance

• Input units: mm / in

• Output units: mm / cm / m / in / ft

• Offline support

• Lightweight and fast performance

• Free app with ads

■ How to Use

1. Select a cross-section shape

2. Enter dimensions or required performance values

3. View results instantly

■ Disclaimer

Calculation results provided by this app are for reference purposes only.

While efforts have been made to ensure accuracy, completeness, and suitability are not guaranteed.

Consult a qualified professional for critical design decisions.

The developer assumes no responsibility for any damages resulting from use of this app.