About Structural Engineering lite
Structural Engineering Calculator delivers 59 AISC and ACI structural formulas with instant results, demand/capacity checks, a built-in AISC section database, and material references - all in one app. Whether you’re on...
Structural Engineering Calculator delivers 59 AISC and ACI structural formulas with instant results, demand/capacity checks, a built-in AISC section database, and material references - all in one app. Whether you’re on site, in the office, or reviewing drawings, every calculation you need is in your pocket. 59 STRUCTURAL FORMULAS COLUMNS Critical Ratio (Cc), Effective Length Factor (K), Slenderness Ratio (KL/r), Allowable Compressive Stress (Sr less than Cc), Allowable Compressive Stress (Sr greater than Cc), Safety Factor, Maximum Axial Load. BEAMS Shear Capacity of Flexural Members, Allowable Bending Stress (Compact and Noncompact), Moment Gradient Factor (Cb), Allowable Flange Bending Stress, Plastic Moment (Mp), Lateral Unbraced Lengths (Lp and Lr), Limiting Buckling Moment (Mr), Nominal Moment (Mn), Critical Elastic Moment (Mcr), Allowable Shear Stress, Beam Deflection for UDL and Point Load. BASE PLATES Base Plate Area, Plate Thickness, Bearing Pressure, Flange and Web Thickness, Plate Dimensions N and B. COMPOSITE BEAMS Horizontal Shear for Concrete and Steel, Number of Shear Connectors, Transformed Section Properties, Modular Ratio, Elastic Neutral Axis. CONNECTIONS Allowable Shear with Tension Field Action, Allowable Bearing Stress for Rollers and Rockers, Axial Stress for Concentrated Loads, Allowable Bearing Stress on Fasteners, Number of Shear Connectors, Total Horizontal Shear. AISC CODE REFERENCES Every formula links directly to AISC/ACI clauses - AISC 360-16, AISC ASD 9th Edition, ACI 318-19, and AISC Design Guide 3. PASS / FAIL CHECK Instant visual adequacy check with demand/capacity ratio - green for PASS, red for FAIL. AISC SECTION PICKER Browse W-shapes (AISC 15th Edition) and auto-fill section properties instantly. REFERENCE TAB Built-in library with W-sections (W4-W44), ASTM materials (A36, A992, A572, A500, A325, A490, F1554), weld electrodes, concrete grades, and codes. USCS & SI UNITS Switch anytime between inches/ksi and mm/MPa with automatic conversion. All section and material data included. Supports both USCS and SI units. Compatible with iPhone and iPad. Pay once - no subscriptions. References: AISC Steel Construction Manual 15th Edition, AISC 360-16, AISC ASD 9th Edition, ACI 318-19, AISC Design Guide 3.
Version History Major Update · AISC code reference on every formula · PASS/FAIL demand/capacity ratio check · Built-in AISC W-shape section picker (W4×13 through W44×335) · Reference tab with section tables and ASTM material grades · Full SI unit support — mm, MPa throughout · Calculation history with save and review · PDF report export for design records · Formula category filter — Columns, Beams, Connections, Base Plates, Composite · Free trial — 4 calculations per formula before unlock 7.3 Apr 9 Regular update with improvements for a smoother experience. 7.2 07/07/2025 • Minor updates and improvements. • Added support for entering values in exponential format (e.g., input 29E+3 instead of 29000). 7.1 01/15/2025 All new user interface. Update for iOS 18 7.0 12/12/2024 All new user interface with updating for IOS 16. Structural Calculator is now, available in dark mode. 6.3 09/24/2023 - minor update to fix an issue, in switching to metric units. 6.2 04/04/2023 updated for iOS 16.0 6.1 03/31/2023 - updated for iOS 14 6.0 03/18/2021 Now, you can try all the 58 calculations before you opt to unlock the App. 5.5 04/11/2020 - updated for iOS 13 - looks great in dark mode 5.2 10/02/2019 New user interface. in-App purchases made easy. 5.1 06/19/2019 All new interface with more stability now ready for your new iPhone X 5.0 03/26/2018 allows higher values in Exponential format. as for Modulus Elasticity of Steel enter "180E3 megapascal" instead of "180000000 megapascal" 4.1 02/17/2017 allows higher values in Exponential format as for Modulus Elasticity of Steel enter "180E3 megapascal" instead of "180000000 megapascal" 4.0 09/22/2016 - issues with rotation in iPhone is cleared 3.2 07/09/2016 - offers in App Purchase to open all the 58 Calculators for Structural Engineering 3.1 07/08/2016 - Improved User Interface - ready for iPad Pro 2.0 03/01/2016 switch between Units (Imperial) or (Metric) more easily 1.2 09/11/2013 - User-Interface Improved 1.1 07/22/2013 1.0 04/26/2013
Previous Versions
Here you can find the changelog of Structural Engineering lite since it was posted on our website on 2023-09-25 11:06:28.
The latest version is 7.3 and it was updated on 2026-06-10 20:40:44. See below the changes in each version.
Structural Engineering lite version 7.3
Updated At: 2026-06-10
Changes: Version History Major Update
· AISC code reference on every formula
· PASS/FAIL demand/capacity ratio check
· Built-in AISC W-shape section picker
(W4×13 through W44×335)
· Reference tab with section tables and
ASTM material grades
· Full SI unit support — mm, MPa throughout
· Calculation history with save and review
· PDF report export for design records
· Formula category filter — Columns, Beams,
Connections, Base Plates, Composite
· Free trial — 4 calculations per formula
before unlock 7.3 Apr 9 Regular update with improvements for a smoother experience. 7.2 07/07/2025 • Minor updates and improvements.
• Added support for entering values in exponential format (e.g., input 29E+3 instead of 29000). 7.1 01/15/2025 All new user interface.
Update for iOS 18 7.0 12/12/2024 All new user interface with updating for IOS 16.
Structural Calculator is now, available in dark mode. 6.3 09/24/2023 - minor update to fix an issue, in switching to metric units. 6.2 04/04/2023 updated for iOS 16.0 6.1 03/31/2023 - updated for iOS 14 6.0 03/18/2021 Now, you can try all the 58 calculations before you opt to unlock the App. 5.5 04/11/2020 - updated for iOS 13
- looks great in dark mode 5.2 10/02/2019 New user interface.
in-App purchases made easy. 5.1 06/19/2019 All new interface with more stability
now ready for your new iPhone X 5.0 03/26/2018 allows higher values in Exponential format.
as for Modulus Elasticity of Steel enter "180E3 megapascal" instead of "180000000 megapascal" 4.1 02/17/2017 allows higher values in Exponential format
as for Modulus Elasticity of Steel enter "180E3 megapascal" instead of "180000000 megapascal" 4.0 09/22/2016 - issues with rotation in iPhone is cleared 3.2 07/09/2016 - offers in App Purchase to open all the 58 Calculators for Structural Engineering 3.1 07/08/2016 - Improved User Interface
- ready for iPad Pro 2.0 03/01/2016 switch between Units (Imperial) or (Metric) more easily 1.2 09/11/2013 - User-Interface Improved 1.1 07/22/2013 1.0 04/26/2013
Structural Engineering lite version 7.2
Updated At: 2025-07-07
Changes: Regular update with improvements for a smoother experience.
Structural Engineering lite version 7.2
Updated At: 2025-07-07
Changes: Jul 7, 2025
Version 7.2
Regular update with improvements for a smoother experience.
Structural Engineering lite version 6.3
Updated At: 2023-09-24
Changes: Sep 24, 2023
Version 6.3
All new user interface with updating for IOS 16.
Structural Calculator is now, available in dark mode.
Structural Engineering lite version 6.2
Updated At: 2023-04-04
Changes: Apr 4, 2023
Version 6.2
- minor update to fix an issue, in switching to metric units.
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