HydroSizer: Pipe & Pump Head

Hydronic Sizing & Head Loss

Only for iPhone

$0.99 · Designed for iPhone. Not verified for macOS.

iPhone

Size hydronic pipes and get pump head (TDH) in seconds — steel, copper, PEX & CPVC. Darcy–Weisbach or Hazen–Williams. 100% offline, one-time purchase, no ads. HydroSizer puts hydronic pipe sizing and pump head in your pocket. Size chilled- and hot-water pipes in seconds, then build the total dynamic head to select your pump — all offline, no subscription. PIPE SIZING • Enter flow (GPM, L/s, m³/h) plus a target head-loss rate or velocity • Get the exact bore and the nearest nominal size for steel, copper, PEX or CPVC • See actual velocity, head-loss rate and Reynolds number instantly • Velocity guidance keeps you inside the design band PUMP HEAD (TDH) • Add pipe runs, fittings and equipment pressure drops • Get total dynamic head with a clear breakdown: pipe, fittings, equipment, static • Closed- and open-loop handling done right ACCURATE ENGINE • Darcy–Weisbach with Colebrook–White friction — or switch to Hazen–Williams • Water properties by temperature; fittings via K-factor or equivalent length BUILT FOR REAL WORK • 100% offline — works anywhere, no signal needed • One-time purchase — no ads, no subscription, no account, no data collected • Fast, real-time results in a clean, modern interface • US and metric units throughout From the makers of AirCalc, DuctSizer and RefCalc — engineering tools that just work.

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The developer, Duong Nguyen Huu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

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    Accessibility

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    Information

    Seller
    • Duong Nguyen Huu
    Size
    • 31.6 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 16.4 or later.
    • iPhone
      Requires iOS 16.4 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Gnouden
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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