Concrete Engineering

Concrete Engineering Calculator is a professional-grade app with all 56 calculators for concrete and civil engineering — fully unlocked from first launch. Smart auto-fill pickers, calculation history with PDF export, and ACI code references on every calculator.
Key Features:

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

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