Hydraulics and Waterworks Calc

About this app

The Hydraulics Calculator offers 94 calculators to simplify your hydraulics, waterworks, and civil engineering calculations — available in both Metric (SI) and Imperial (USCS) units. Key Features: Smart auto-fill pickers for pipe materials, fluid properties, channel linings, soil types, pipe fittings, orifice/weir coefficients and runoff coefficients Flow regime indicators — Froude number (Subcritical/Critical/Supercritical) and Reynolds number (Laminar/Transitional/Turbulent) Hydraulic jump classification Built-in reference tables for all material and fluid properties General Hydraulics - Capillary Rise - Viscosity / Kinematic Viscosity - Hydrostatic Pressure - Pressure Head / Velocity Head / True Velocity Head - Specific Energy Head / Head Loss (Bernoulli Equation) - Total Energy (Elemental Volume of Fluid) - Total Head of Flowing Fluid - Average Velocity of Flow - Summation of Forces (X direction) Dimensionless Numbers - Froude Number - Reynolds Number - Weber Number Friction Losses - Head Loss due to Friction (General / Darcy-Weisbach) - Chezy Velocity / Chezy Coefficient - Manning Flow Velocity (including pipe diameter) - Flow Rate, Head Loss, and Pipe Diameter (Manning) - Hazen-Williams Flow Velocity and Friction Loss Pipe Flow and Fittings - Head Loss across Pipe Diameter Changes - Brightmore Equation for Pipe Contractions - Head Loss from Pipe Fittings - Loss Coefficient Orifice and Fluid Flow - Orifice Flow Rate / Coefficient of Contraction - Initial Velocity of Fluid Jets - Gage Pressure in Conical Tubes - Wave Velocity in Pipes (Water Hammer) - Pipe Material Stress - Section Factor Hydraulic Jumps - Force, Momentum Change, and Head Loss Temperature Effects on Pipes - Stress and Length Movement due to Temperature Culverts and Channels - Elevation Differences (Headwater and Tailwater) - Velocity and Flow Rates in Culverts - Open Channel Flow — Rectangular, Triangular, Parabolic, and Trapezoidal Channels Circular Channels - Cross-Sectional Area, Critical Depth, Top Width, and Flow Rate Weirs - Flow Rate — Rectangular, Triangular, Trapezoidal, and Broad Crested Weirs Sediment and Water Movement - Sediment Transport (Schoklitsch Formula) - Evaporation Rate (Meyer Equation) - Wind Factor Rainfall and Groundwater - Peak Discharge (Rational Formula) - Rainfall Intensity (Steel Formula) - Groundwater Flow (Darcy's Law) Specialized Calculations - Fire Demand Rate - Gravity and Artesian Well Flow Rates - Economic Pipe Diameter - Venturi Flow Meter - Power from Water Flow

- Smart auto-fill pickers for pipe materials, fluids, soils, fittings and runoff coefficients - Flow regime indicators — Froude, Reynolds and Hydraulic Jump classification

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1. First observed Aug 10, 2026 · 3:33 PM $4.99