McCalc Fusion Calculator

McCalc Fusion Calculator

HDPE/PP Pressure Calculator

18 ratings
28 reviews
Free

Details

  • Released
  • Updated
  • June 15, 2010
  • January 12, 2026

Features

McCalc Fusion Calculator screenshot #1 for iPhone
McCalc Fusion Calculator screenshot #2 for iPhone
McCalc Fusion Calculator screenshot #3 for iPhone
McCalc Fusion Calculator screenshot #4 for iPhone
iphone
ipad
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About

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 machines
Choose from nine international standards
Enter pipe size in multiple units
Input wall thickness via dimensional ratio or actual thickness
Specify interfacial and drag pressure
Supports English, Spanish, and Portuguese
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What's New in McCalc Fusion Calculator

3.1.0

January 12, 2026

Added the AST F3722-24 standard

User reviews

Update Issue

After the new update the screen if just blank, nothing appears.

Mc Clac

Does not work go back to old app

Nice update but still has flaws, just my opinion.

The new update to this app that took place over the weekend is a nice update. But now you’ve lost the separation between the PP and PE selector at the bottom of the page, and the proper specification selector becomes more difficult to understand unless you know exactly which one you need. Granted this is taught in training, yet can be easily forgotten in the field when you have nothing to reference. It would be nice to give a reference page to the proper specification selection based on area of the world and material as a separate click item at the top of the page. When you were doing PP before there was only 3 selections in the PP category, now there is 21 listed over all for both types. The separation of the 2 materials was much better and easier to navigate. A legend of the Green, Orange and Yellow spots would be nice also. Most of us know this that have been doing this for many years, but many newcomers may not. We don’t want it to be a guessing game for those that don’t. I like the new sound feature included on the ending of each perimeter area for heat soak, open, and cooling, but the sound needs to be louder and more of an attention getter, than a soft cutisy tune. Overall McElroy is the leader in the fusion industry and happy to be a distributor for them. Keep up the good work!
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What?

Too detailed.
Won’t save input.
Have had over a year, and has never helped me.

Needs to be updated

The only thing this app is good for is to get you your pressures in numbers because as soon as you close the app and re-open it everything is gone

Developer apps

FAQ

What does the McCalc Fusion Calculator do?

The McCalc Fusion Calculator helps users determine the correct fusion pressure for HDPE and Polypropylene pipe jobs. It simplifies the process by allowing users to select their McElroy fusion machine and input pipe size and pressure requirements to calculate the recommended theoretical gauge pressure.

What are the key features of this app?

Key features include easy selection of McElroy hydraulic fusion machines, choice from nine international standards for pipe fusion, flexible pipe size entry in various units (IPS, DIPS, O.D., JIS), wall thickness input via dimensional ratio or actual thickness, and the ability to enter interfacial and drag pressure in multiple units (psi, bar, kg/cm², MPa). It also offers multi-language support.

Is this app free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, indicating a completely free user experience.

What pipe sizes and standards does the app support?

The app supports pipe size entry in IPS, DIPS, O.D., or JIS units. It also offers selection from nine different international standards for HDPE and Polypropylene pipe fusion, providing broad compatibility for various job requirements.

Who would benefit from using this calculator?

This calculator is designed for professionals involved in heat-fusing polyethylene pipe, such as plumbers, contractors, and engineers. It is particularly useful for those working with HDPE and Polypropylene pipes who need to ensure the correct interfacial pressure is achieved according to manufacturer specifications.