Plumbing Formulator app icon

Apps Like Plumbing Formulator for iPhone and iPad

Professional calculator for plumbing and HVAC.

The app offers over 200 formulas and tools for plumbing, HVAC, and mechanical contractors. It includes calculators for water flow, piping, drainage, water heaters, pumps, gas, medical gas, pools, septic, and thermal expansion.

by Historycentral.com Inc★ 4.67 ratingsProductivityFreeData updated 2026-09-10

Plumbing Formulator screenshots

Ranked alternatives

Showing 41–60 of 1,000 ranked alternatives.

  1. HVAC Pipe Sizer - Gas Low app icon

    HVAC Pipe Sizer - Gas Low

    Carmel Software Corporation

    Size gas piping systems with precise inputs

    Calculate gas piping system sizes for low-pressure applications. Input total flow, pressure drop, diameter, or velocity. Output exact and nominal diameters, calculated velocity, and total equivalent length.

    ★ 5.02 ratingsProductivity$4.99Data updated 2026-09-08
  2. Pipe Flow Gas Pipe Diameter app icon

    Pipe Flow Gas Pipe Diameter

    Daxesoft Ltd

    Calculate for rate and pressure loss

    Calculate minimum for gas based on rate and pressure loss. Use multiple equations including AGA, Panhandle A, and Weymouth. Automatically adjust for gas density with Ideal Gas Law and CNGA compressibility factor. Input parameters and view results.

    ★ 4.73 ratingsUtilitiesFreeData updated 2026-09-06
  3. Units Plus Converter app icon

    Units Plus Converter

    Alan Mrvica

    Swap currency with a single button press

    Convert across 12 categories including area, currency, data, distance, temperature, and time. Swap by pressing a button on the keypad. View live currency updates for 155 world currencies every 15 minutes. Supports iPad Split View.

    ★ 4.98,416 ratingsUtilities$19.99Data updated 2026-10-05
  4. Electrical Formulator app icon

    Electrical Formulator

    Historycentral.com Inc

    Complete electrical calculation tool for professionals.

    The app provides over 100 electrical formulas for calculations and conversions. Users can save, print, or email results and access frequently used formulas.

    ★ 5.01 ratingsProductivityFreeData updated 2026-09-10
  5. HyTools app icon

    HyTools

    IMI Hydronic Engineering International SA

    Hydronic calculations for HVAC professionals.

    The app offers hydronic calculations for HVAC professionals, including flow, pressure drop, and valve sizing. It also provides radiator power estimation and unit conversion features.

    ★ 4.05 ratingsProductivityFreeData updated 2026-09-30
  6. Pipe Calc Elite app icon

    Pipe Calc Elite

    Cyberprodigy LLC

    Calculate dimensions and pressure loss

    Calculate dimensions and pressure loss for 7 materials. Solve linear and rolling offsets, cutbacks, and other job site equations. Convert units and store standard data for quick access.

    ★ 4.8152 ratingsUtilities$19.99Data updated 2026-09-08
  7. Flow Rate Help app icon

    Flow Rate Help

    Armchair Engineering

    Calculate , diameter, or velocity

    Calculate fluid rates, pipe diameter, or liquid velocity. Choose units for diameter, velocity, and . Set decimal precision for results. Solve equations for accurate measurements.

    ★ 4.344 ratingsUtilities$0.99Data updated 2026-09-10
  8. WinFab - Sheet Metal Ductulator app icon

    WinFab - Sheet Metal Ductulator

    pasquale dipaola

    Calculate duct sizes and dimensions

    Calculate duct sizes based on airflow requirements and space constraints. Input dimensions and airflow rates. Generate reports with material estimates and installation guidelines. Export data for sharing or record-keeping.

    ★ 4.86 ratingsBusiness$3.99Data updated 2026-10-16
  9. Zimmatic Irrigation Calculator app icon

    Zimmatic Irrigation Calculator

    Lindsay Corporation

    Convert units and calculate system metrics

    Perform calculations for hydraulics, depth, friction loss, wire sizing, application rates, rotation time, system flow rates, and area. Convert between metric and US units. Use yield converter for unit conversions.

    ★ 5.03 ratingsBusinessFreeData updated 2026-09-11
  10. Concrete Calc Pro Calculator app icon

    Concrete Calc Pro Calculator

    Calculated Industries, Inc.

    Calculate volume for slabs, footings, and walls

    Calculate volume for slabs, footings, columns, walls, and stairs in cubic yards, feet, or meters. Estimate needed, determine weight and bag requirements. Calculate rebar spacing and truckloads.

    ★ 4.9607 ratingsUtilitiesFreeData updated 2026-09-08

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.