Complete civil engineering toolkit with 12 modules, 500+ calculations, engineering references, saved history, and PDF report sharing — supporting both SI and USCS units. Perform advanced calculations across structural engineering, concrete design, hydraulics, soil mechanics, beam analysis, surveying, foundations, road construction, timber engineering, bridge engineering, and more. NEW REFERENCE LIBRARY Access integrated engineering references directly inside the app for faster design checks and field calculations: • Steel sections, ASTM/AISC material grades, rebar grades, and concrete mix classes • Beam and structural engineering references • Hydraulics and hydrology references including fluid properties, pipe materials, runoff coefficients, channel linings, and pipe fittings • Soil and earthwork references • SI and USCS engineering reference systems • Quick searchable engineering standards and properties Structural Engineering (58 Calculators) • Calculate shear capacity, critical ratios, slenderness, and safety factors • Analyze compressive and flexural stresses for compact and non-compact sections • Design structural elements subjected to axial, shear, and flexural loading • AISC-based steel design calculations Concrete Engineering (56 Calculators) • Water-cement ratio and modulus of elasticity • Tensile and compressive strength calculations for beams and columns • Reinforcement stress analysis and extreme fiber stress calculations • Concrete mix references, rebar grades, and ACI design limits Beam Engineering (56 Calculators) • Beam stress, load, and deflection analysis • Bending moments, shear forces, and section modulus calculations • Multiple material and loading condition support • W-sections and steel section references included Hydraulics & Waterworks (94 Calculators) • Capillary rise, viscosity, and kinematic viscosity calculations • Hydrostatic and hydrodynamic pressure analysis • Bernoulli equation, flow velocity, head losses, and energy calculations • Fluid properties, pipe materials, runoff coefficients, and fitting references Column Construction (56 Calculators) • Slenderness ratio and axial load capacity • Effective length factor and stability analysis • Compression member design calculations • Stress and moment interaction checks Foundations & Piles • Pile capacity and settlement calculations • Stress distribution and soil bearing analysis • Load-bearing capacity evaluation for different soil conditions • Deep foundation engineering tools Surveying (33 Calculators) • Inclination and temperature corrections • Error propagation and probable error calculations • Survey measurement adjustment tools • Standard deviation analysis for survey data Soil Mechanics & Earthworks (60 Calculators) • Void ratio, porosity, and degree of saturation • Plasticity index and shrinkage index calculations • Relative density and compaction analysis • Soil property references and earthwork engineering tools Roads & Highway Construction (37 Calculators) • Circular and parabolic curve design • Radius, tangent, chord, and superelevation calculations • External distance and median line analysis • Highway geometric design tools Timber Engineering (55 Calculators) • Beam section and fiber stress analysis • Horizontal shear stress calculations • Radius of gyration and moment of inertia • Timber structural design calculations Bridge Engineering (58 Calculators) • Bridge load distribution and stress analysis • Dynamic load factor calculations • Truss, suspension, and beam bridge calculations • Moment and shear capacity analysis Unit Converters (32 Parameters) • Pressure, area, force, energy, velocity, and more • Fast SI ↔ Imperial conversions • Engineering-focused unit conversion tools