Pipe Sizing Calculator

Calculate pressure drop and recommended pipe size

Flow Rate (GPM)

Pipe Length (feet)

Pipe Material

Pipe Size

Number of Elbows/Fittings

Flow Velocity:

Friction Loss (per 100 ft):

Pipe Friction Loss:

Fittings Loss:

Total Pressure Drop

PSI

⚠️ Warning:

Typical residential pressure: 40-80 PSI. Maximum recommended pressure drop: 5-7 PSI for branch lines.

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