Hydraulics and Waterworks lite

he Hydraulics Calculator offers 94 calculators to simplify your hydraulics, waterworks, and civil engineering calculations — available in both Metric (SI) and Imperial (USCS) units.

Explore core calculators for free, with the option to unlock the complete Hydraulics Calculator suite through a simple one-time purchase.

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