Cross Section Calculator

Contains ads
Content rating
Everyone
500+
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Content rating
Everyone
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About this app

Cross Section Calc is a free cross section calculator that quickly computes 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 provides a simple and intuitive workflow for both learning and practical design checks.
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
• 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
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.
Updated on
May 17, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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What’s new

- Refreshed the home screen for quicker access to frequently used sections
- Improved the input screen experience for smoother operation while viewing diagrams
- Added a new “Ad-Free” feature. Watch a video to hide ads for a limited time
- Added support for Android 15
- Various improvements and bug fixes
Content rating
Everyone
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App support

About the developer
田中陽介
info@smallstepscoding.com
Japan