Friction loss

Fire hose friction loss calculator

Calculate friction loss per 100 feet and total line loss using hose C-values, GPM, and line length.

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Friction loss quick calculator

Formula: FL per 100 ft = C × (GPM / 100)².

53 PSI total FL

Training links

Apply friction loss in scenarios.

PracticeDriver/Operator Practice

Use friction loss in DO pumper-style questions.

PrintPrintable Pump Scenarios

Print worksheets with answer keys.

ToolPump Pressure Calculator

Add nozzle pressure, elevation, and appliance loss.

Training note: These web tools are for education, practice, and estimating. Use your department SOPs, instructor direction, and manufacturer guidance for live operations.