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Water Pressure Drop Calculator

Calculate water pressure loss using the Hazen-Williams formula.

ft
gpm
in

Pressure Drop

12.18 psi

Drop per 100 ft

12.175 psi/100 ft

Pipe Length

100.0 ft

Flow Rate

10.00 gpm

Pipe Diameter

0.75 in

Method

Hazen-Williams (C=150 copper/PEX)