Enter the flow rate in gallons per hour and the pipe cross-sectional area in square inches into the calculator to determine the pressure in PSI. This calculator helps in converting the flow rate of a fluid to the equivalent pressure in a piping system.

GPH to PSI Formula

The following formula is used to convert GPH (gallons per hour) to PSI (pounds per square inch).

PSI = left(frac{left(frac{GPH}{60}right)}{left(frac{Area}{144}right) times 7.48}right) times 0.002228 / 0.433

Variables:

  • PSI is the pressure in pounds per square inch
  • GPH is the flow rate in gallons per hour
  • Area is the cross-sectional area of the pipe in square inches

To convert GPH to PSI, first convert the flow rate from gallons per hour to gallons per minute, then calculate the velocity of the fluid in the pipe, and finally convert that velocity to PSI using the formula provided.

What is GPH to PSI Conversion?

GPH to PSI conversion is a process of translating the flow rate of a fluid (in gallons per hour) into the equivalent pressure (in pounds per square inch) within a piping system. This conversion is important for engineers and technicians to understand the relationship between the flow of fluid and the pressure it generates, which is crucial for designing and maintaining piping systems and fluid delivery mechanisms.

How to Calculate Pressure from Flow Rate?

The following steps outline how to calculate the pressure from the flow rate.

  1. First, determine the flow rate (GPH) in gallons per hour.
  2. Next, determine the cross-sectional area of the pipe (Area) in square inches.
  3. Use the formula provided to calculate the pressure (PSI).
  4. Finally, use the calculator above to verify your result.

Example Problem :

Use the following variables as an example problem to test your knowledge.

Flow rate (GPH) = 300 gallons per hour

Pipe cross-sectional area (Area) = 2 square inches