Best Compressible Gas Flow Calc Apps

195+ iOS apps curated and reviewed

4.7 avg rating
17 free apps
Updated June 2026

Whether you're new to compressible gas flow calc or looking for an upgrade, our curated collection of 195+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Compressible Gas Flow Calc

Pipe Flow Gas Pressure Drop#2

Pipe Flow Gas Pressure Drop by Daxesoft Ltd

Find Loss, Friction Loss Calc
Strong Contender
🔧 Utilities
4.7(11 ratings)
FreeIn-App Purchases
Pipe Flow Gas Pressure Drop screenshot 1
Pipe Flow Gas Pressure Drop screenshot 2
Pipe Flow Gas Pressure Drop screenshot 3
Pipe Flow Gas Pressure Drop screenshot 4
Pipe Flow Gas Pressure Drop screenshot 5
Pipe Flow Gas Pressure Drop screenshot 6

This app calculates gas pressure loss in pipes using various compressible flow equations. It automatically handles gas density changes and provides detailed results including Reynolds number and friction factors. Users can customize pipe materials, fittings, and gases from integrated or custom databases.

Pipe Flow Gas Flow Rate#3

Pipe Flow Gas Flow Rate by Daxesoft Ltd

Find Flow, Friction Loss Calc
Worth Considering
🔧 Utilities
5.0(7 ratings)
FreeIn-App Purchases
Pipe Flow Gas Flow Rate screenshot 1
Pipe Flow Gas Flow Rate screenshot 2
Pipe Flow Gas Flow Rate screenshot 3
Pipe Flow Gas Flow Rate screenshot 4
Pipe Flow Gas Flow Rate screenshot 5
Pipe Flow Gas Flow Rate screenshot 6

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.

More Compressible Gas Flow Calc 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
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
6
Gas Volume Calc
Gas Volume Calc
Gas Volume Calc
Orifice Gas Flow Calculator
Free

This utility estimates natural gas flow rate using standard orifice meter calculations. It's designed for field use by operators, technicians, and engineers, combining meter geometry, flowing conditions, and gas composition for quick, reliable estimates.

Estimates natural gas flow rate (MCFD)Uses standard orifice meter calculationsCombines meter geometry, flowing conditions, and gas composition
📊 Productivity
(3)
free
7
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
8
Water Flow Calculators
Water Flow Calculators
Water Flow Calculators
by Waterous
Free

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.

Friction loss calculationsSmooth nozzle calculationsNFA formula support
📚 Education
(5)
free
9
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
10
HVAC & Sheet Metal Calculator
HVAC & Sheet Metal Calculator
HVAC & Sheet Metal Calculator
Construction Math & Trade Pro
Free
$29.99 | 100% OFF

This app provides advanced calculations for HVAC and sheet metal professionals. It simplifies complex dimensional math, geometry, and trigonometry with specialized functions for ducting, airflow, and construction layouts. Offers a free trial before committing to a subscription.

Sheet metal calculations (radius, offset, wrapper length)Trigonometric functions (sine, cosine, tangent, arc)HVAC specific calculations (fan law, CFM, velocity)
🔧 Utilities
(40)
free with in-app purchases
11
Pipe Flow Liquid Pipe Diameter
Pipe Flow Liquid Pipe Diameter
Pipe Flow Liquid Pipe Diameter
Find Size, Friction Loss Calc
Free

This app calculates the minimum internal pipe diameter required for a specific flow rate and maximum pressure loss. It offers comprehensive results, customizable databases for materials and fluids, and generates professional reports.

Pipe diameter calculationFriction loss calculationCustomizable material and fluid databases
🔧 Utilities
(5)
free with in-app purchases
12
Air Velocity and Flow Calc
Air Velocity and Flow Calc
Air Velocity and Flow Calc
by Dwyer Instruments, Inc.
Free

This utility app simplifies air velocity and flow calculations using Dwyer Pitot Tubes. It supports both US and Metric units for quick spot checks.

Air velocity calculationAir flow calculationPitot tube support
🔧 Utilities
(4)
free
13
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
14
Air Products Gas Converter
Air Products Gas Converter
Air Products Gas Converter
by Air Products and Chemicals Inc
Free

This utility converts weight and volume measurements for various industrial gases and liquefied natural gas. It accounts for each gas's unique properties, simplifying complex calculations for users on their iPhone or iPad.

Converts weight and volume for industrial gasesSupports nitrogen, oxygen, argon, hydrogen, helium, CO2Converts liquefied natural gas (LNG)
🔍 Reference
(8)
free
15
FlowXpert
FlowXpert
FlowXpert
Oil & gas calculation library
Free

This app provides a comprehensive library of certified calculations for flow and fluid properties. It is designed for use in flow and level measurement systems within the oil and gas industry.

Certified flow calculationsFluid property calculationsFlow measurement systems
💼 Business
(46)
free
16
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
17
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
18
Sporty's E6B Flight Computer
Sporty's E6B Flight Computer
Sporty's E6B Flight Computer
Calculator for pilots
$9.99

This aviation calculator app offers 27 functions for navigation, fuel calculations, and conversions. It includes a versatile timer for tracking multiple time zones and performing countdowns with alerts. Designed for pilots, it simplifies complex flight planning and in-flight computations.

27 Aviation Functions22 Aviation ConversionsNavigational Calculations
🗺️ Navigation
(5K)
paid
19
ESC Gas Flow Rate Calculator
ESC Gas Flow Rate Calculator
ESC Gas Flow Rate Calculator
Measure & calculate flow rates
Free
🔧 Utilities
(0)
20
Gas and Unit Converter
Gas and Unit Converter
Gas and Unit Converter
by Cyl-Tec, Inc.
Free

This app offers a comprehensive suite of conversion tools for industrial gases and common units of measurement. It also includes a product guide for a specific manufacturer, making it a valuable resource for industry professionals and students.

Industrial gas conversionUnit calculator for area, distance, pressure, temperature, weight, volumeCyl-Tec product guide
🔧 Utilities
(7)
free