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.
Plumbing Formulator screenshots
Ranked alternatives
Showing 61–80 of 1,000 ranked alternatives.



AccuValve
Accutrol, LLC
Select valves for HVAC systems.
The app assists HVAC system designers in selecting AccuValves. It helps size valves to achieve minimum system pressure drop.


Ultimate Car Audio App
Thomas VanSlambrouck
Wire subwoofers, calculate cone area, suggest amplifier
Calculate subwoofer voice coil wiring for single, double, and quad configurations. Determine subwoofer cone area. Suggest amplifier power and car electrical system requirements. Include subwoofer box calculators and Ohms Law tools.

Electric Toolkit - Calculator
Cyberprodigy LLC
Wire diagrams, pinouts, calculate electricity
Access electrical wiring diagrams for switches, fans, and outlets. Calculate grounding conductor sizes. View diagrams for 3-way switches, 4-way switching, GFCI, and more. Includes NEC 2014 to NEC 2023 standards.

GB Gas Pipe Sizing Calculator
George A Brown
Calculate natural gas pipe sizes easily.
The app calculates natural gas pipe sizes for metric copper and stainless steel pipes. Users input appliance gas rate, meter length, and bends to check for a 1mb pressure drop.

Converter: Units & Currencies
DROXIC OOD
Elegant and simple unit converter app.
The app offers over 25 categories and 450 units for conversion, including 150 currencies. It supports 24 languages and is designed for iPhone, iPad, and iPod touch.

HVAC Pipe Sizer Plus
Carmel Software Corporation
Size HVAC liquid steam gas
The app sizes liquid, steam, and gas piping systems. It allows users to input various properties and observe calculated results.



Navisizer
Navien, Inc.
Size systems, calculate costs, generate specs
Calculate heating system requirements for residential and commercial applications. Input system data to determine sizing and operating costs. Generate detailed reports for job specifications and energy savings analysis.


Plutocalc+ Water
Daniel Peig
Solve treatment problems
Solve engineering problems with 103 calculators and 2670 calculations. Access chemical databases and standards. View self-explanatory diagrams. Input data for real-time results. Supports multiple languages including English and Portuguese.
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Converter Plus [paid]
TranCreative Software
Convert units, calculate, and edit templates
Convert units and currencies across hundreds of categories with real-time exchange rates updated every 6 hours. Calculate mortgages, loans, tips, and fuel consumption. Edit, create, or download customizable templates for various conversions.



Pipe Flow Liquid Pipe Diameter
Daxesoft Ltd
Calculate for rate and pressure loss
Calculate minimum internal based on rate and maximum pressure loss. Input elevation changes and select valves and fittings. Display Reynolds number and friction factor. Export results in various formats.

CPF TechTools
Charlotte Pipe and Foundry Company
Calculate pipe expansion and temperature adjustments
Calculate pipe expansion and contraction with built-in formulas. Adjust for temperature de-rating using industry-standard methods. Access tools for plumbing engineers, contractors, and architects. Future updates will add more features.

How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.