# Natural Gas Pipe Size — Pipe Sizing & Pressure Drop > Natural gas pipe sizing and pressure drop calculation tool. (iPhone/iPad app by Sebastjan Valic.) - Source: https://appshunter.io/ios/app/natural-gas-pipe-size/id538945071 (this page in markdown: same URL + `.md`) - Developer: [Sebastjan Valic](https://appshunter.io/developer/503687385) - Category: Productivity, Utilities - Price: $6.99 - Rating: 5.00/5 from 1 App Store ratings · 4 written reviews indexed - Age rating: 4+ - Requires: iOS 26.0 · 1 MB - Languages: American English, German (Germany), Italian, Slovenian - Released: 2012-07-03 - Data updated: 2026-08-17 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/natural-gas-pipe-size/id538945071/reviews.md ## What is Natural Gas Pipe Size? Why not just use an AI assistant to quickly size pipes for natural gas installations? If you prefer fast and consistent results with a familiar user interface, no second-guessing, no trying out different AI models and no subscriptions - this app is for you. #### Pipe sizing and pressure drop calculation for natural gas installations made easy Estimate required pipe diameter for natural gas piping / installations in an instant. Calculate pressure drop for the selected pipe section. #### Obtain required pipe diameter instantly The application provides a quick and simple way to obtain required pipe diameter when designing natural gas piping systems. Only some basic user input is required (heat output and pipe length) and the result is instantaneous and accurate. #### Wide range of conditions The application allows to perform calculations at a wide range of conditions, as gas lower heating value, temperature, pressure and location altitude can be set individually in order to get accurate results. #### Calculate pressure drop easily After a quick estimate of the recommended standard or nominal pipe size, the user can choose their own diameter, customize pipe material and define fittings and valves to calculate volume flow rate, velocity and pressure drop. The app will notify the user if their chosen diameter is too small. #### Metric and Imperial units Natural Gas Pipe Size app can perform calculations using metric or imperial units. #### Features - Provides required pipe diameter for a pipe section in an instant; - Recommended diameter is displayed as a standard DN or nominal NPS; - Gas working pressure and temperature can be specified; - Wide range of working conditions (heat output, pressure and temperature); - Suitable for individual (home) as well as larger, industrial applications; - Different predefined materials can be selected; - Fittings and valves can be selected from the list; - Displays natural gas volume flow rate and pressure drop for selected pipe section; - Suggests whether the selected pipe diameter might be too small; - Metric and imperial units; - No data connection required to perform calculations; - No ads, no in-app purchases; #### Note The application displays results for a pipe section. Calculations for multiple pipe sections should be performed separately. ------ #### Some reviews Natural Gas Pipe Size: pipe sizing & pressure drop calculation for natural gas installations Very helpful natural gas pipe sizing.... I really like this version for sizing natural gas lines. Imperial units are certainly appreciated. Just be sure to reset the fittings section for each section of pipe you checking. 5 stars by Cod Peace | 09 Feb 2016 ---------- Erdgasleitung: Rohr Dimensionierung und Druckverlust-Berechnung für Erdgasanlagen Erdgasleitung Ich benutze diese App sehr viel und immer mit Erfolg. Habe die Angaben oft nachgerechnet und sie stimmten immer. 5 stars by MOMOG62 | 10 Dec 2013 ## Key features - Instant pipe diameter calculation - Pressure drop estimation - Supports various conditions (heat, pressure, temp) - Metric and imperial units - Material and fitting selection - No internet connection required ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/natural-gas-pipe-size/id538945071/reviews.md ### 1/5 — Poor *2025-02-26* Very poor app ### 5/5 — Very helpful natural gas pipe sizing.... *2016-02-09* I really like this version for sizing natural gas lines. Imperial units are certainly appreciated. Just be sure to reset the fittings section for each section of pipe you checking. ### 1/5 — Gas *2014-05-27* Metric only. Not too useful for pipe sizing or pressure drop calculations ### 5/5 — Erdgasleitung *2013-12-10* Ich benutze diese App sehr viel und immer mit Erfolg. Habe die Angaben oft nachgerechnet und sie stimmten immer. ## Frequently asked questions about Natural Gas Pipe Size ### What is Natural Gas Pipe Size used for? Natural Gas Pipe Size is used to quickly estimate the required pipe diameter for natural gas installations and calculate the pressure drop for a selected pipe section. It provides fast and accurate results for designing natural gas piping systems. ### Does Natural Gas Pipe Size have ads? No, Natural Gas Pipe Size is ad-free. The app explicitly states 'No ads, no in-app purchases' in its features list, ensuring an uninterrupted user experience. ### What units does Natural Gas Pipe Size support? Natural Gas Pipe Size supports both metric and imperial units. This allows users to perform calculations according to their preferred measurement system for natural gas piping. ### Can I use Natural Gas Pipe Size offline? Yes, Natural Gas Pipe Size does not require a data connection to perform calculations. This feature makes it convenient for use in locations with limited or no internet access. ### What information do I need to input into Natural Gas Pipe Size? You need to provide basic user input such as heat output and pipe length to obtain the required pipe diameter. For pressure drop calculations, you can also specify gas working pressure and temperature, select pipe materials, and define fittings and valves. ### Is Natural Gas Pipe Size suitable for industrial applications? Yes, the application is suitable for both individual (home) and larger, industrial applications. It can handle a wide range of conditions, including gas lower heating value, temperature, pressure, and location altitude. ### How often is Natural Gas Pipe Size updated? The latest version of Natural Gas Pipe Size is 3.8, and it was last updated on March 19, 2026. This indicates a commitment to maintaining and improving the application. ### What is the price of Natural Gas Pipe Size? Natural Gas Pipe Size is a paid application priced at $6.99. This one-time purchase provides access to all its features without subscriptions or in-app purchases. ## Version history (last 5 releases) ### 3.8 — 2026-03-19 Updated design. Small updates. ### 3.7 — 2022-11-02 Corrected link in help. Updated for newer OS versions. ### 3.6 — 2021-10-03 - Compatibility with recent versions of iOS. ### 3.5 — 2020-12-21 - Small update. - Now available also for the Mac. ### 3.4 — 2019-12-08 - Dynamic Type. - Other changes. ## Apps similar to Natural Gas Pipe Size | App | Rating | Price | Category | | --- | --- | --- | --- | | [SUMOFIBER Mobile Voice](https://appshunter.io/ios/app/sumofiber-mobile-voice/id1479251479) | 4.5 (2) | Free | Productivity | | [HVAC Pipe Sizer - Gas Low](https://appshunter.io/ios/app/hvac-pipe-sizer-gas-low/id341688321) | 5.0 (2) | $4.99 | Productivity | | [Engineering Forms](https://appshunter.io/ios/app/engineering-forms/id6479765443) | — | Free | Productivity | | [HVAC Pipe Sizer - Gas Plus](https://appshunter.io/ios/app/hvac-pipe-sizer-gas-plus/id342239204) | 5.0 (1) | $7.99 | Productivity | | [Tank Volume Calculator A1 PRO](https://appshunter.io/ios/app/tank-volume-calculator-a1-pro/id6759477456) | — | Free | Productivity | | [Porsche El Paso Connect](https://appshunter.io/ios/app/porsche-el-paso-connect/id6502406733) | — | Free | Productivity | ## More apps by Sebastjan Valic - [RadiatorOutput](https://appshunter.io/ios/app/radiatoroutput/id503687382) - [Floor Heating](https://appshunter.io/ios/app/floor-heating/id507609113) - [Heating Pipe Size](https://appshunter.io/ios/app/heating-pipe-size/id527730872) - [Hydraulic Separator](https://appshunter.io/ios/app/hydraulic-separator/id538932932) - [Heating Cost: compare systems](https://appshunter.io/ios/app/heating-cost-compare-systems/id548038714) All apps by Sebastjan Valic: https://appshunter.io/developer/503687385 ## Related topics [natural gas pipe size](https://appshunter.io/ios/topics/natural-gas-pipe-size) · [pipe flow gas pipe diameter](https://appshunter.io/ios/topics/pipe-flow-gas-pipe-diameter) · [pipe flow gas pipe length](https://appshunter.io/ios/topics/pipe-flow-gas-pipe-length) · [ges gas pipe sizing calculator](https://appshunter.io/ios/topics/ges-gas-pipe-sizing-calculator) · [gas pipe sizing plumb](https://appshunter.io/ios/topics/gas-pipe-sizing-plumb) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*