Cross Section Calculator
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About this app
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.
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.
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What’s new
Added a feature to calculate required cross-sectional dimensions from the required section modulus (Z) and second moment of area (I).
