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Tired of looking at charts and fumbling around in codebooks in order to size gas pipe? This pipe sizing calculator takes all of that work and hassle out of the equation by calculating it for you, based on the total BTU load, length of the longest run, and type of gas. Simply enter the values, select your gas type (LP or Natural) and hit calculate. The minimum size gas pipe needed will be outputted, so you can continue on with your day.

Designed for low pressure, 0.5psi

What’s New

Version 2.0

Upgraded user interface to iOS7, minor bug fixes

Ratings and Reviews

3.0 out of 5
7 Ratings

7 Ratings

Gas man1 ,

High pressure needed

Great app!! It just needs to have high pressure capabilities.

554455bbgghh ,


All the other sizing charts were full of information I didn't need, this one, to the point.
Only complaint, it's so simple I wish it would show the charts used in the calculation, ie: so I could manipulate the footage and gas load.
Also, I would like to see different psi and pressure drop. I wouldn't use it often but in commercial applications in my area this wouldn't help me.

Udhehsis ,

Great app.

For basic gas pipe sizing in most areas this app is a must have. More accurate than plumbing charts. I even got the gas company to download it. Needs to be update so I can continue using.

App Privacy

The developer, Connor Kelley, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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