Friction Loss
Engineering calculation tool
Friction Loss Result
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Formula Used
Hazen–Williams
h_f = (10.67 × L × Q¹·⁸⁵²) / (C¹·⁸⁵² × D⁴·⁸⁷)
Hazen–Williams is empirical and best suited for water at typical temperatures. C values range from 60 (corrugated metal) to 150 (PVC/FRP).