Hydraulic Hose Selection Calculator

Select the correct hydraulic hose dash size from flow rate, pressure, and velocity limits. Calculates pressure drop and fitting losses.

Flow rate (GPM)

Working pressure (PSI)

Hose length (ft)

Line type (1=suction, 2=return, 3=pressure)

Fluid specific gravity

Fluid viscosity (cSt)

Number of fittings

Tab to move between fields

Recommended SAE dash size

Hose ID (inches)0.5

Minimum required ID (in)0.4

Actual velocity (ft/s)12.83

Total pressure drop (PSI)5.3

Reynolds number4,838

Pressure rating usage (%)75

Power loss (HP)0.03

Velocity LabelPressure (≤20 ft/s)

How to Use This Calculator

Enter Flow rate (GPM), Working pressure (PSI), and Hose length (ft).
Set Line type (1=suction, 2=return, 3=pressure), Fluid specific gravity, and Fluid viscosity (cSt).
Adjust Number of fittings as needed.
Review the Recommended SAE dash size result.
Use Hose ID (inches) and Minimum required ID (in) to inform your decision.

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