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Size Any Pipe in 60 Seconds

Flow, friction loss and the velocity rules — water line sizing the engineer's way, free.

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Pipe Sizing Calculator (Velocity Method)

Minimum pipe diameter to carry a flow at your chosen design velocity, with the next standard size suggested.

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Pipe Friction Loss Calculator (Darcy–Weisbach)

Head loss in a pipe with the friction factor solved automatically (Swamee–Jain) from roughness and Reynolds number.

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Hazen–Williams Head Loss Calculator

Friction loss for water pipes by the Hazen–Williams formula with your C coefficient.

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Pipe Volume Calculator

Water content of a pipeline — for flushing, dosing, draining and freeze-protection planning.

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Pump Total Dynamic Head (TDH) Calculator

Add static lift, discharge head, and suction/discharge friction into the total head a pump must develop.

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