Civil Engineering Calculators | Construction Tools

Civil Engineering Calculators | Construction Tools

Civil Engineering Calculator

Elegant tools for material, geotechnical, structural, and hydraulic calculations in construction projects

Material Quantity & Weight

Concrete Volume

Length (m): Width (m): Height (m):

Concrete Mix Quantities

Concrete Volume (m³): Mix Ratio: M5 (1:5:10) M7.5 (1:4:8) M10 (1:3:6) M15 (1:2:4) M20 (1:1.5:3) M25 (1:1:2)

Steel Weight

Diameter (mm): Length (m): Quantity:

Aggregate/Sand Bag Estimator

Material Volume (m³): Bag Size (kg): Density (kg/m³):

Reinforcement Spacing

Slab Area (m²): Bar Diameter (mm): Number of Bars:

Material Weight

Volume (m³): Density (kg/m³):

Geotechnical & Earthwork

Soil Density

Mass (kg): Volume (m³):

Soil Bearing Capacity (Simplified Terzaghi)

Cohesion c (kPa): Soil Unit Weight γ (kN/m³): Foundation Depth Df (m): Foundation Width B (m): Nc (Bearing Factor): Nq (Bearing Factor): Nγ (Bearing Factor):

Excavation Volume

Length (m): Width (m): Depth (m):

Slope Stability (FOS - Simplified)

Cohesion c (kPa): Angle of Friction φ (deg): Unit Weight γ (kN/m³): Slope Height H (m): Slope Angle β (deg):

Retaining Wall Pressure (Active Earth Pressure)

Soil Unit Weight γ (kN/m³): Wall Height H (m): Angle of Friction φ (deg):

Soil Compaction (Proctor Density)

Maximum Dry Density (kg/m³): Optimum Moisture Content (%): Field Dry Density (kg/m³):

Structural & Hydraulics

Simple Load & Reaction (UDL on Simply Supported Beam)

Uniform Load w (kN/m): Beam Length L (m):

Beam Deflection (Simply Supported UDL)

Uniform Load w (kN/m): Length L (m): Modulus E (GPa): Moment of Inertia I (m⁴):

Darcy-Weisbach Head Loss

Friction Factor f: Length L (m): Velocity V (m/s): Diameter D (m): Gravity g (m/s²):

Water Tank Capacity

Length (m): Width (m): Height (m):