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Concrete Framing Roofing Aggregates Plumbing All calculators

TrowlCalc / Plumbing · Division 22

Plumbing calculators

What's in the pipe, and how fast it moves.

Pipe Volume Calculator Gallons, liters & water weight from any inner diameter

Up next: GPM flow rate, pipe weight, and drain slope.

TrowlCalc — construction calculators that answer in materials, not math.

Every calculation runs in your browser — dimensions and prices never leave your device. No signup, no tracking of your numbers.

Estimates, not advice — verify before you order or build · About · Editorial standards