Plumbing Calculators
Calculate PEX & copper supply pipe diameters by GPM flow rate, first-hour rating water heater sizing, household septic tank gallon capacity, and elevation PSI pressure loss.
Pipe Sizing Calculator – PEX & Copper Diameter by GPM
→
Water Heater Sizing Calculator – Tank Gallons & Tankless GPM
→
Septic Tank Sizing Calculator – Gallon Capacity by Bedroom Count
→
Water Pressure Loss Calculator – Friction PSI Drop & Elevation
→
Plumbing Hydraulics & Fixture Sizing
Proper pipe sizing ensures adequate water pressure and flow rate to fixtures without cause noisy water hammer or excessive friction head loss. Calculate supply pipe diameters, water heater GPM demand, septic tank size by bedroom count, and PSI drop.