To calculate the flow rate of a hose, input the hose diameter, pressure, and length into the formula to determine the volume of water flowing through it per unit of time.

Hose Flow Rate Calculator

Enter any 3 values to calculate the missing variable

The Hose Flow Rate Calculator helps you determine the rate at which water flows through a hose based on its diameter, pressure, and length.

This is vital for various applications, such as garden irrigation, fire hose operations, and hydraulic systems. Whether you're solving for garden hose nozzle psi, understanding hose length effect on water pressure, or evaluating irrigation flow rates, this calculator provides precise results.

From professionals managing water supply systems to homeowners calculating pool fill times, it offers accuracy and convenience.

Formula:

Q=(1946.6⋅D1.857⋅(P/L))0.54Q = (1946.6 \cdot D^{1.857} \cdot (P/L))^{0.54}

Variable Description Unit
QQ
 Flow Rate Gallons per minute (GPM)
DD
 Hose diameter Inches
PP
 Water pressure Pounds per square inch (PSI)
LL
 Hose length Feet

Solved Calculations:

Example 1

Step Value Explanation
Hose Diameter (DD) 0.75 inches0.75 \, \text{inches}
 Given
Water Pressure (PP) 50 PSI50 \, \text{PSI}
 Given
Hose Length (LL) 50 feet50 \, \text{feet}
 Given
Calculation Q=(1946.6⋅0.751.857⋅(50/50))0.54Q = (1946.6 \cdot 0.75^{1.857} \cdot (50/50))^{0.54}
 Plug values into formula
Simplification Q=(1946.6⋅0.56⋅1)0.54Q = (1946.6 \cdot 0.56 \cdot 1)^{0.54}
 Simplify terms
Result Q=15.2 GPMQ = 15.2 \, \text{GPM}
 Flow rate

 

Example 2

Step Value Explanation
Hose Diameter (DD) 1.0 inches1.0 \, \text{inches}
 Given
Water Pressure (PP) 70 PSI70 \, \text{PSI}
 Given
Hose Length (LL) 75 feet75 \, \text{feet}
 Given
Calculation Q=(1946.6⋅1.01.857⋅(70/75))0.54Q = (1946.6 \cdot 1.0^{1.857} \cdot (70/75))^{0.54}
 Plug values into formula
Simplification Q=(1946.6⋅1⋅0.93)0.54Q = (1946.6 \cdot 1 \cdot 0.93)^{0.54}
 Simplify terms
Result Q=20.8 GPMQ = 20.8 \, \text{GPM}
 Flow rate

What is the Hose Flow Rate ? Calculate Pipe Water, Hose Flow Rate based on Pressure, Diameter, Hose Length:

The Hose Flow Rate Calculator is a practical tool that calculates the flow rate of water or other fluids through hoses or pipes, based on key parameters like pressure, diameter, and hose length.

It is widely used for irrigation, firefighting, plumbing, and hydraulic systems, enabling accurate determination of flow efficiency for various applications.

To use this calculator, input values such as hose diameter, pressure at the source, and hose length. For instance, if you have a 5/8-inch garden hose with a water pressure of 50 psi, the calculator provides the flow rate in gallons per minute (GPM) or liters per second.

This helps users plan irrigation systems, calculate sprinkler spacing, or determine the time required to fill a pool.

The tool is equally useful for calculating flow rates in fire hoses, air hoses, and hydraulic systems, ensuring safety and efficiency in specialized operations.

Final Words:

In conclusion, the Hose Flow Rate Calculator is a versatile and reliable tool for managing water or fluid flow in various applications. It simplifies complex calculations, saving time and ensuring optimal system performance.

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