Very useful
I like the fitting selector and pipe material picker
$3.99
In-App Purchases
About
A professional tool for hydraulic engineers to calculate pressure losses in piping systems. It supports US and SI units, offers an extensive pipe material and fittings database, and includes inverse calculations for design optimization.
✓Friction head loss calculation (Hazen-Williams)
✓US and SI unit support
✓Extensive pipe material library
✓Fittings and valves database
✓Inverse calculation mode
✓Real-time results (velocity, losses)
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What's New in HydroCalc Plus
1.3.1
July 24, 2026
App previews added
4
In-App Purchases
$1.99
Pump Power Calculator
Calculate pump power from head loss and efficiency
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FAQ
What is HydroCalc Plus used for?
HydroCalc Plus is a professional hydraulic engineering tool designed to calculate pressure losses in piping systems. It helps engineers, plumbers, and contractors in designing water distribution networks and other fluid transport systems.
What calculation methods does HydroCalc Plus use?
HydroCalc Plus primarily uses the industry-standard Hazen-Williams equation to calculate friction head losses. It also accounts for minor losses from fittings and valves using a comprehensive K-factor database.
Does HydroCalc Plus support different unit systems?
Yes, HydroCalc Plus supports both US customary units (feet, gallons per minute, psi) and International System of Units (meters, liters per second, bar) for comprehensive global use.
Can HydroCalc Plus perform inverse calculations?
Yes, HydroCalc Plus features a unique inverse calculation mode. This allows users to determine optimal pipe diameter, flow rate, or length required to achieve a specific target head loss for their system.
What kind of pipe materials are included in HydroCalc Plus?
The app includes an extensive pipe material library with pre-defined roughness coefficients (C-factors) for materials such as PVC, polyethylene, steel, cast iron, and concrete, with C-factors ranging from 120-150.
How often is HydroCalc Plus updated?
The latest version of HydroCalc Plus is 1.2.9, and it was last updated on January 26, 2026. This indicates a commitment to ongoing development and improvements.
Is HydroCalc Plus available on multiple devices?
HydroCalc Plus is available for iPhone, iPad, and iPod devices, making it accessible for users across Apple's mobile ecosystem.
Does HydroCalc Plus have ads?
No, HydroCalc Plus does not contain advertisements. As a paid application, it offers an ad-free experience for its users.
