Pipe Fitter formula From this app you will get detailed discussion on how to do Pipe Fitting with Pipe Fitting formula. It has many fit-outs in the app such as pipe size, fitting, flange, pipe hanger, pipe clamp and gaskets. With Pipe fitter Formula apps, you can easily calculate the pipe offsets. In this app you will get allthe information and about the piping. Pipe Fitter formula calculate and Pipe Joint Fittings method Guide.