About this app
Concrete Engineering Calculator is a user-friendly app with 56 calculators for concrete and civil engineering parameters. This version introduces smart auto-fill pickers, a full calculation history with PDF export, and ACI code references on every calculator. Key Features: 56 calculators covering beams, columns, slabs, walls, and more Supports both Metric (SI) and Imperial (USCS) units Includes detailed formulas for all calculations Smart auto-fill pickers for concrete mix grades, rebar grades, and bar sizes Calculation history with save, review, and PDF export ACI 318-19 code reference badge on every calculator 6 calculators free forever, 56 total — unlock all with a one-time purchase, no subscription Beam Calculations: Water/Cementitious Materials Ratio Modulus of Elasticity Tensile Strength Compressive Stress (Beam) Stress in Reinforcement Cross-sectional Area (Tensile and Compressive Reinforcement) Stress (Extreme Fiber of Concrete) Shear and Diagonal Tension Nominal Shear Stress Ultimate Shear Capacity Cracking Moment Bending Moment Capacity (Underreinforced and Rectangular Beams) Column Calculations: Total Allowable Axial Load Spiral Reinforcing Ratio Long-Column Load Reduction Factor (Fixed Ends) Maximum Permissible Eccentricity (Spiral and Tied Columns) Bending Load (Spiral and Tied Columns) Slab and Wall Calculations: Slab Thickness Flexural Stiffness Ratio (Beam Section and Slab Width) Axial Capacity of Wall Nominal Shear Stress on Wall Vertical Shear Reinforcement Ratio of Wall Development Lengths and Crack Control: Tension Development Lengths (Various Bar Types) Compression Development Length Development Length (Hooked Bar) Crack Width Control Additional Calculations: Volume of Spiral Steel to Concrete Core Ratio Moment at Balanced Condition Shear Friction Reinforcement Area Coefficient of Sliding Friction Modular Ratio Steel Ratio Effective Moment of Inertia Total End Shear (Counterfort Walls) Ultimate Strength (No Wind, With Wind, With Earthquake Load) Auto-Fill Reference Pickers: Concrete mix picker fills compressive strength and modulus of elasticity automatically Rebar grade picker fills yield strength and modulus of steel automatically Bar size picker fills cross-sectional area and diameter automatically All pickers support both SI and USCS unit modes
Latest release
What’s New
Major update. Smart auto-fill for ACI mix grades, rebar and bar sizes. Calculation history, PDF export, SI and USCS formula corrections, PASS/FAIL checks.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
- First observed Aug 10, 2026 · 3:33 PM Free