Best Gas Pipe Sizing Calculator Apps

226+ iOS apps curated and reviewed

4.2 avg rating
15 free apps
Updated June 2026

Finding the right gas pipe sizing calculator app can be overwhelming with so many options. We've analyzed 226+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Gas Pipe Sizing Calculator

Sizing US/CA#1

Sizing US/CA by Gastite Products LLC

Editor's Choice
🔧 Utilities
3.2(13 ratings)
FreeAds
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This utility app helps installers determine the correct size of flexible gas piping for their projects. It calculates the appropriate pipe size based on gas type, tubing length, supply pressure, and flow capacity. Users can also access installation guides and product information.

Pipe Flow Wizard - Calculator#2

Pipe Flow Wizard - Calculator by Daxesoft Ltd

Flow Rate & Pressure Loss Calc
Strong Contender
🔧 Utilities
4.5(98 ratings)
FreeIn-App Purchases
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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.

TracPipe CounterStrike Guide#3

TracPipe CounterStrike Guide by Omega Flex, Inc.

Worth Considering
🔧 Utilities
3.4(7 ratings)
FreeAds
TracPipe CounterStrike Guide screenshot 1
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This application helps users calculate the correct size of flexible gas piping for installations. It supports various sizing methods and gas types, providing accurate results based on selected parameters. Users can also access updated design guides and installation instructions.

More Gas Pipe Sizing Calculator apps to explore

4
Pipe Flow Gas Pipe Length
Pipe Flow Gas Pipe Length
Pipe Flow Gas Pipe Length
Find Length,Friction Loss Calc
Free

This app calculates the maximum pipe length for gas flow before pressure loss exceeds a specified rate. It offers comprehensive results, customizable databases for materials and fittings, and supports various units. Engineers can generate professional reports and verify calculations against published data.

Maximum pipe length calculationFriction loss and fitting loss analysisCustomizable databases for materials, fluids, and fittings
🔧 Utilities
(1)
free with in-app purchases
5
Gas Pipe Sizing Calculator
Gas Pipe Sizing Calculator
Gas Pipe Sizing Calculator
by Connor Kelley
$1.99

This utility app simplifies gas pipe sizing by performing calculations based on BTU load, run length, and gas type. It eliminates the need for manual chart and codebook referencing, providing the minimum required pipe size quickly.

Calculates minimum gas pipe sizeInput BTU loadInput longest run length
🔧 Utilities
(4)
paid
6
Code Snap: UPC & IPC Pro
Code Snap: UPC & IPC Pro
Code Snap: UPC & IPC Pro
Uniform Plumbing Code
Free
$7.99 | 100% OFF

Access essential plumbing code data and calculations on the go. This app provides quick access to UPC & IPC tables, water line sizing, and fitting take-offs, streamlining fieldwork for plumbing professionals.

UPC & IPC code tablesWater line sizing calculatorDWV & H2O fitting take-offs
🔧 Utilities
(227)
subscription
7
Gas-main
Gas-main
Gas-main
Gas pipeline calculation
Free
📊 Productivity
(0)
8
Pipe Flow Gas Pipe Diameter
Pipe Flow Gas Pipe Diameter
Pipe Flow Gas Pipe Diameter
Find Size, Friction Loss Calc
Free

This utility app calculates the minimum internal pipe diameter for gas flow based on flow rate and pressure loss. It supports various calculation equations and offers comprehensive results with customizable units and databases for materials, fluids, and fittings.

Calculates minimum internal pipe diameterSupports multiple flow equations (AGA, Weymouth, etc.)Handles gas density changes with Ideal Gas Law
🔧 Utilities
(2)
free
9
Gas Pipe Sizing Calculator
Gas Pipe Sizing Calculator
Gas Pipe Sizing Calculator
by Mr Combi Sales Ltd.
$4.99

This app helps installers select the correct gas pipe sizes for boiler installations. It calculates the minimum required pipe diameter and pressure drop based on gas type, appliance input, pipe length, and fittings. Supports copper, steel, and PE pipes.

Select pipe size based on gas typeEnter appliance heat inputSpecify pipe length and fittings
📊 Productivity
(1)
paid
10
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
11
GB Gas Pipe Sizing Calculator
GB Gas Pipe Sizing Calculator
GB Gas Pipe Sizing Calculator
by GB-GAS.CO.UK
$7.99

This tool calculates natural gas pipe sizes for metric copper, stainless, and semi-rigid pipes in the UK. Input appliance gas rates, pipe length, and bends to determine if the installation meets the 1mb drop requirement from meter to appliance. It also suggests the appropriate gas meter size.

Metric pipe sizingCopper, stainless, and semi-rigid pipe supportCalculates 1mb pressure drop
💼 Business
(6)
paid
12
RegO App
RegO App
RegO App
by Engineered Controls International, LLC.
Free

This comprehensive tool assists propane professionals with essential calculations and field checks. It offers guidance for regulator and pipe sizing, relief valve selection, and detailed field notes. Professionals can conduct various system checks and generate reports directly from the app.

Regulator selection guidancePipe and relief valve sizingField notes and manual access
🔍 Reference
(17)
free
13
Gastite Sizing App
Gastite Sizing App
Gastite Sizing App
by Gastite Systems Limited
Free

This app simplifies calculating the required size of Gastite® CSST for gas installations. Input gas type, CSST length, and appliance power to instantly determine the correct size. It offers easy navigation, user-friendly design, and access to FAQs and installation guides.

CSST sizing calculationNatural gas or LPG selectionAccess to FAQs
🔧 Utilities
(0)
free
14
GB Gas Heat Input Calculator
GB Gas Heat Input Calculator
GB Gas Heat Input Calculator
by GB-GAS.CO.UK
Free

This tool simplifies calculating natural gas heat input and gas rates for installations. It allows users to time their meter, input readings, and get instant results, eliminating the need for manual charts or complex calculations.

Heat input calculationGas rate calculationMetric meter timing
💼 Business
(0)
free
15
GES Gas Pipe Sizing Calculator
GES Gas Pipe Sizing Calculator
GES Gas Pipe Sizing Calculator
Sizing for natural gas & LPG
Free
💼 Business
(0)
16
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
Calculates everything. Try it.
Free

This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.

Over 40 calculators and unit convertersStandard and scientific calculator functionsFinancial calculators (interest, loan, currency)
📊 Productivity
(4.8K)
free with in-app purchases
17
Natural Gas Pipe Size
Natural Gas Pipe Size
Natural Gas Pipe Size
Pipe Sizing & Pressure Drop
$6.99

Quickly calculate natural gas pipe diameters and pressure drops for installations. Supports a wide range of conditions, materials, and units, providing instant and accurate results without subscriptions or ads.

Instant pipe diameter calculationPressure drop estimationSupports various conditions (heat, pressure, temp)
📊 Productivity
(1)
paid
18
ESC Gas Flow Rate Calculator
ESC Gas Flow Rate Calculator
ESC Gas Flow Rate Calculator
Measure & calculate flow rates
Free
🔧 Utilities
(0)
19
Offset Calc App ANSI
Offset Calc App ANSI
Offset Calc App ANSI
ANSI/ASME Standard
$6.99

This industrial pipe construction tool calculates pipe offsets and weights according to ANSI/ASME standards. It offers imperial and metric calculations for various pipe sizes and fittings, helping users save material, time, and stress.

Imperial and metric offset calculationsPipe and profile weight calculationsANSI/ASME standard nominal diameters
📊 Productivity
(14)
paid
20
McCalc Fusion Calculator
McCalc Fusion Calculator
McCalc Fusion Calculator
HDPE/PP Pressure Calculator
Free

This app calculates the correct fusion pressure for HDPE and Polypropylene pipe jobs. It simplifies the process by selecting your fusion machine and entering pipe details to determine the recommended theoretical gauge pressure.

Select McElroy fusion machinesChoose from nine international standardsEnter pipe size in multiple units
💼 Business
(18)
free