# GB GAS L.P.G. PIPE SIZING APP — LPG Pipe sizing BS6891 method

> LPG pipe sizing calculator for metric copper, stainless steel, and semi-rigid pipes. (iPhone/iPad app by GB-GAS.CO.UK.)

- Source: https://appshunter.io/ios/app/gb-gas-lpg-pipe-sizing-app/id436641770 (this page in markdown: same URL + `.md`)
- Developer: [GB-GAS.CO.UK](https://appshunter.io/developer/425897007)
- Category: Business, Utilities
- Price: $9.99
- Age rating: 4+
- Requires: iOS 26.0 · 2 MB
- Released: 2011-05-13
- Data updated: 2026-08-27
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/gb-gas-lpg-pipe-sizing-app/id436641770/reviews.md

## What is GB GAS L.P.G. PIPE SIZING APP?

Very similar to the natural gas pipe sizing calculator except this is for L.P.G. works with metric copper, stainless steel, and semi rigid pipes including 6,8,10,12,15,22,28 mm . Input the gas rate for the appliances ,the meter lengths of pipe and number of elbows and this will find out if the pipe diameter you picked will have an allowable drop ... if it doesn't, then just change the diameter to see if that will work.
This also has conversion tables to change from any of the figures, m3/hr to kW gross to kW net ... and can work out the number and sizes of LPG bottles required.

## Key features

- LPG pipe sizing calculator
- Supports metric copper, stainless steel, semi-rigid pipes
- Calculates allowable pressure drop
- Conversion tables for gas rates
- Determines gas bottle requirements

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/gb-gas-lpg-pipe-sizing-app/id436641770/reviews.md

### 1/5 — You can only do measurements and millimeter and meters

*2021-09-07*

Couldn’t help me in the United States

### 1/5 — Inaccurate!

*2016-11-05*

This app does not give accurate results! I entered my details for a three appliance installation, the app said the pipe sizing is not appropriate and would fail with a drop across one section of 4.17mb. 

When I checked it manually with tables and equations I had a drop of 0.68mb for the same pipe size and equivalent length. Not even close, don't waste your money. 

For the developer reading this, there are also some basic spelling mistakes. It doesn't inspire confidence in your product.

### 1/5 — Rubbish!!!

*2013-07-15*

Only goes up to 28mm! If you work on industrial pipe don't waste your money.

## Frequently asked questions about GB GAS L.P.G. PIPE SIZING APP

### What pipe materials does GB GAS L.P.G. PIPE SIZING APP support?

GB GAS L.P.G. PIPE SIZING APP supports metric copper, stainless steel, and semi-rigid pipes. It is designed for LPG installations and works with common metric pipe sizes.

### How does GB GAS L.P.G. PIPE SIZING APP help with pipe sizing?

You input the gas rate for appliances, meter lengths of pipe, and the number of elbows. The app then determines if the chosen pipe diameter will have an allowable pressure drop, allowing you to adjust if necessary.

### Does GB GAS L.P.G. PIPE SIZING APP offer conversion tools?

Yes, the app includes conversion tables to change between various figures such as m3/hr, kW gross, kW net, and KG/hr. This provides flexibility in your calculations.

### Can GB GAS L.P.G. PIPE SIZING APP estimate gas bottle needs?

The application can also inform you about the number of gas bottles required for an installation, depending on their size. This is a useful feature for planning and resource management.

### What is the price of GB GAS L.P.G. PIPE SIZING APP?

GB GAS L.P.G. PIPE SIZING APP is available for a one-time purchase of $7.99. This price grants you access to all its features for LPG pipe sizing and conversions.

### On which devices can I use GB GAS L.P.G. PIPE SIZING APP?

GB GAS L.P.G. PIPE SIZING APP is supported on iPhone, iPad, and iPod devices. It is also compatible with Apple Watch, offering convenience for quick checks.

### When was GB GAS L.P.G. PIPE SIZING APP last updated?

The latest version of GB GAS L.P.G. PIPE SIZING APP was released on July 24, 2020. The app has been available since its initial release on May 13, 2011.

### What is the user rating for GB GAS L.P.G. PIPE SIZING APP?

GB GAS L.P.G. PIPE SIZING APP has a rating of 1.0 stars based on 1 review. This indicates a need for further user feedback to assess overall satisfaction.

## Version history (last 5 releases)

### 5 — 2026-08-15

Game changing calculation method that tells you the pipe diameters required... No guessing on a rule of thumb and proving it works , then moving back to resize other sections. This calculator works forward then back to find out the smallest pipe diameter so that the meter to the appliance drop is less than 1mb. This then works out the installation volume, the purge volume and the purge type. This will also give you the new IGE UP 1B permissable pressure drop for existing systems. It has a page to work out each section of a pipe system seperatly, just like long hand with no mistakes, this includes every pipe material including MDPE.

### 4 — 2020-07-24

IOS Updates

### 3 — 2018-01-05

IOs Updates

### 2.2 — 2014-01-16

minor glitch update

### 2.1 — 2013-11-18

Fix for minor glitch

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All apps by GB-GAS.CO.UK: https://appshunter.io/developer/425897007

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*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 2026-08-27.*