Plumbing Formulator is a free application designed for plumbers and HVAC installers. It contains over 120 formulas that can be used to calculate everything from pipe wall areas to pipe weight. The program also calculates the final temperature when two bodies of water are mixed, as well as the expansion of pipes, radiant heat, and heat loss.

The Plumbing Formulator has formulas that can calculate the area and volume of different shapes, and it includes dozens of conversions from square feet to square inches, pounds square inches to feet of water, and more. The program allows users to email and print all results, and it also features a favorites and recent formulas section for easy access. The developer, Multieducator Inc, promises to include additional formulas in future updates if requested by users.

Some of the formulas included in Plumbing Formulator are pipe velocity, water horsepower, efficiency of pump, cooling load in Ls/Tons, weight of cast iron pipe, weight of copper pipe, and dozens more. The program also includes charts and a book on plumbing design. Plumbing Formulator is a must-have tool for any plumber or HVAC installer looking for a comprehensive formula calculator.