Best Hydrant Flow Test Calculator Apps

211+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated July 2026

If you already know Hydrant Flow Test Calculator, this is the deeper bench. 211+ hydrant flow test calculator apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 2026.

Top Picks for Hydrant Flow Test Calculator

Hydrant Flow Test Calculator#1

Hydrant Flow Test Calculator by Saleel Anthrathodiyil

Compute hydrant flow test data
Editor's Choice
📊 Productivity
5.0(3 ratings)
Free
Hydrant Flow Test Calculator screenshot 1
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This tool simplifies hydrant flow testing by calculating total GPM from pitot pressures. It allows for outlet settings, flow extrapolation with a Supply vs Demand curve, and plotting demand points for PASS/FAIL results. Save test data with location and project details for future reference.

Flow Test Calculator#2

Flow Test Calculator by Larry Owens

Strong Contender
📊 Productivity
4.1(63 ratings)
FreeIn-App Purchases
Flow Test Calculator screenshot 1
Flow Test Calculator screenshot 2

Calculate hydrant flow rates and determine maximum water system flow. This tool uses a standard variation of the Hazen-Williams formula for calculations. Imperial units are currently supported, with metric coming soon.

Water Flow Calculators#3

Water Flow Calculators by Waterous

Worth Considering
📚 Education
4.6(5 ratings)
Free
Water Flow Calculators screenshot 1
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This educational app provides calculations for water flow using friction loss, smooth nozzle, NFA, and Iowa formulas. It's designed for professionals and students needing quick and accurate fluid dynamics computations.

More Hydrant Flow Test Calculator apps to explore

4
Pipe Flow Wizard - Calculator
Pipe Flow Wizard - Calculator
Pipe Flow Wizard - Calculator
Flow Rate & Pressure Loss Calc
Free

Calculate fluid flow rate and pressure loss in pipes. This app helps engineers determine pipe diameter, maximum pipe length, and friction loss for both liquid and gas flows, including fittings and elevation changes. Results can be shared as Excel or PDF reports.

Flow rate calculationsPressure loss calculationsPipe diameter sizing
🔧 Utilities
(98)
free with in-app purchases
5
Elkhart Hard Facts Calculator
Elkhart Hard Facts Calculator
Elkhart Hard Facts Calculator
by Elkhart Brass
Free

This utility app provides essential calculators for accurate flow testing, covering various nozzle types, pump discharge pressures, and fire flow formulas. It also includes direct links to helpful instructional videos.

Smooth Bore Discharges & Flow/Pressure calculatorNozzle Reaction calculators (Smooth Bore & Fog)Pump Discharge Pressure calculators
🔧 Utilities
(12)
free
6
Concrete Calculator Plus
Concrete Calculator Plus
Concrete Calculator Plus
by Inch Calculator
Free

This app provides 15 calculators for estimating concrete, blocks, mortar, rebar, and gravel. It supports various shapes and units, offering material cost estimations for construction projects.

15 concrete estimation calculatorsEstimates cubic yards or bagsCalculates material costs
🔧 Utilities
(21K)
ad-supported
7
Gravel Calculator Plus
Gravel Calculator Plus
Gravel Calculator Plus
by Inch Calculator
Free

Easily estimate the quantity of various landscaping and hardscaping materials like gravel, stone, and sand. Get precise measurements in tons, cubic yards, or cubic meters for your projects.

Estimate gravel, stone, rock, sand, and topsoilCalculate material needed for landscapingCalculate material needed for hardscape projects
🔧 Utilities
(1.7K)
ad-supported
8
Clorox Pool
Clorox Pool
Clorox Pool
Simple, smart pool maintenance
Free

This app helps DIY pool owners maintain their pools with expert water test analysis and personalized product recommendations. It offers troubleshooting for common pool problems and allows users to shop for recommended products online.

Scan pool test stripsManual test result entryAI-driven water test analysis
🌟 Lifestyle
(29K)
free with in-app purchases
9
Pipe Flow Liquid Flow Rate
Pipe Flow Liquid Flow Rate
Pipe Flow Liquid Flow Rate
Find Flow, Friction Loss Calc
Free

Calculate fluid flow rate in pipes, including friction and fitting losses, using accurate engineering equations. Features extensive databases for liquids, pipes, and fittings, with customizable units and reporting options.

Fluid flow rate calculationFriction and fitting loss calculationExtensive material and fluid databases
🔧 Utilities
(4)
free with in-app purchases
10
Flow Rate Help
Flow Rate Help
Flow Rate Help
Velocity + Diameter Calculator
$0.99

Calculate liquid flow rate, pipe diameter, or velocity with ease. Customize units for diameter, velocity, and flow rate, and set your preferred decimal places for precise results.

Solve flow rate equationsCustomizable diameter unitsCustomizable velocity units
🔧 Utilities
(41)
paid
11
Landscaping Calculator Plus
Landscaping Calculator Plus
Landscaping Calculator Plus
by Inch Calculator
Free

Easily estimate landscaping materials like gravel, soil, mulch, and concrete. Supports multiple units of measurement for accurate project planning. Ideal for DIYers and professionals.

10 landscaping material calculatorsEstimate gravel, soil, mulch, concreteSupports inches, feet, yards, cm, meters
🔧 Utilities
(2.8K)
ad-supported
12
Pipe Trades Pro Calc
Pipe Trades Pro Calc
Pipe Trades Pro Calc
Calculator | Welding & Piping
Free

This app provides advanced calculation tools and comprehensive data for pipe trade professionals. It streamlines workflows for pipefitters, welders, and steamfitters with features for measurements, fluid dynamics, and material specifications. Designed for efficiency and accuracy, it works offline for on-site use.

Advanced measurement calculationsFluid dynamics and pressure analysisComprehensive pipe data access
🔧 Utilities
(3.6K)
free with in-app purchases
13
Orifice Flow Rate Calculator
Orifice Flow Rate Calculator
Orifice Flow Rate Calculator
Natural Gas
Free

Easily calculate natural gas orifice flow rates using the AGA 3 standard. This utility app allows users to determine MCF production for a given duration, save calculations, and export data to CSV. It functions offline, requiring no cell service.

Orifice MCF CalculatorRotary (Direct) MCF CalculatorSave all calculations
🔧 Utilities
(98)
free
14
Pipe Flow Liquid Pressure Drop
Pipe Flow Liquid Pressure Drop
Pipe Flow Liquid Pressure Drop
Find Loss, Friction Loss Calc
Free

This app calculates friction and fitting losses in liquid flow systems using the Darcy-Weisbach equation. It offers extensive databases for fluids, pipes, and fittings, with customizable units and reporting options. Verified against published data, it's designed for engineers needing accurate pressure drop calculations.

Friction and fitting loss calculationsDarcy-Weisbach equation with Colebrook-WhiteIntegrated databases for fluids, pipes, and fittings
🔧 Utilities
(12)
free with in-app purchases
15
Concrete and Agg Calculator
Concrete and Agg Calculator
Concrete and Agg Calculator
by Chaney Enterprises
Free

Calculate precise amounts of concrete, aggregate, and masonry materials needed for various construction projects. Accounts for potential waste and overages to ensure you order the right quantity.

Concrete slab calculationConcrete footing calculationConcrete wall calculation
💼 Business
(37)
ad-supported
16
proudP: urine flow test
proudP: urine flow test
proudP: urine flow test
Measure. Understand. Act
Free

This app allows men to discreetly measure their urine flow at home using their smartphone. It provides objective data and insights to help users understand their urinary health and prepare for conversations with their doctor.

At-home urine flow testingAcoustic AI measurementObjective data insights
🏥 Medical
(796)
free with in-app purchases
17
Compare Flow
Compare Flow
Compare Flow
by iENGINEERING Corporation
Free

This application helps engineers and designers evaluate the hydraulic flow capacity of various non-pressure sewer pipe types. It allows for comparisons between different pipe geometries and materials, including concrete, thermoplastic, and metal options.

Manning's Formula calculationCompare hydraulic flow capacityEvaluate pipe geometry alternatives
📊 Productivity
(5)
free
18
Pool Time ClearPool Expert™
Pool Time ClearPool Expert™
Pool Time ClearPool Expert™
by BioLab, Inc.
Free

This app provides expert water analysis for your swimming pool using test strips or kits. It offers personalized maintenance plans, reminders, and troubleshooting tips to keep your pool clean and swim-ready. You can also add recommended products to a shopping cart for purchase.

Expert water analysis with test strips or kitsPersonalized pool maintenance plansMaintenance reminders
🔧 Utilities
(5.3K)
free
19
Pipe Flow Gas Flow Rate
Pipe Flow Gas Flow Rate
Pipe Flow Gas Flow Rate
Find Flow, Friction Loss Calc
Free

This utility app calculates gas flow rates in pipes, accounting for friction and fitting losses using compressible isothermal equations. It offers extensive databases for materials, fittings, and gases, with customizable units and reporting options.

Gas flow rate calculationFriction and fitting loss analysisCompressible isothermal equations
🔧 Utilities
(7)
free
20
Pipe Calc Elite
Pipe Calc Elite
Pipe Calc Elite
Calculator for Pipe Trade Pros
$19.99

An advanced calculator for pipe trade professionals, offering quick access to pipe data, dimensions, and complex calculation solutions. It handles fractions and unit conversions, making it an essential tool for plumbers and fabricators on the job site.

Pipe data and dimensionsPressure loss calculationsOffset and cutback calculations
🔧 Utilities
(143)
paid