Hose Flow Rate Calculator

Formula

The formula to calculate the Hose Flow Rate is:

\[ Q = (1946.6 \cdot D^{1.857} \cdot \left(\frac{P}{L}\right))^{0.54} \]

Where:

\(Q\) is the volumetric flow rate in gallons per minute (GPM)
\(D\) is the internal diameter of the hose in inches
\(P\) is the dynamic pressure of water in psi
\(L\) is the length of the hose in feet

What is Hose Flow Rate?

A hose flow rate is defined as the total volume of water or fluid that moves through a hose per unit of time. This is most often measured in gallons per minute (GPM).

Example Calculation

Let's assume the following values:

Internal Diameter (D) = 1.5 inches
Dynamic Pressure (P) = 60 psi
Length of the Hose (L) = 50 feet

Using the formula:

\[ Q = (1946.6 \cdot 1.5^{1.857} \cdot \left(\frac{60}{50}\right))^{0.54} \approx 98.98 \text{ GPM} \]

The Flow Rate is approximately 98.98 GPM.