Use this friction loss calculator to estimate head loss in a pipe system quickly and clearly. The tool is designed for general guidance and helps you understand how pipe material, internal diameter, pipe length and flow rate affect friction loss.

This calculator uses the Hazen-Williams equation to provide a practical estimate of friction loss in pressurised pipework. It is useful for comparing pipe options, checking likely performance and supporting early-stage sizing decisions.

General Guidance Only

This friction loss calculator is intended for general reference only and should not replace a full system design review. Installation conditions, fittings, valves, elevation changes and other factors can affect final performance. For technical advice, speak to Pedrollo Distribution.