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💧 Water Flow Calculator

Calculate flow rate, pipe size, and velocity

0
GPM
Pipe Size
0"
Velocity
0 ft/s
Pressure
0 PSI
Pipe Area
0 in²

How to Use This Calculator

Calculate water flow rate (GPM), required pipe size, or flow velocity for plumbing systems. Enter your pipe diameter and desired flow velocity to get accurate flow calculations. Recommended velocity: 4-8 ft/s for most residential applications.

🚧 Recommended Plumbing Supplies

🔧
PEX Pipe & Fittings
All sizes available
🔩
Pipe Fittings
Copper & PVC
💧
Pressure Regulators
Control water flow
🧰
Plumbing Tools
Pro tool kits

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