Enter the allowable stress (PSI), the wall thickness (in), and the outside diameter (in) into the calculator to determine the Pipe Pressure.

## Pipe Pressure Formula

The following formula is used to calculate the Pipe Pressure.

Ppipe = (2*S*T/D)

• Where Ppipe is the Pipe Pressure (psi)
• S is the allowable stress (PSI)
• T is the wall thickness (in)
• D is the outside diameter (in)

## How to Calculate Pipe Pressure?

The following example problems outline how to calculate the Pipe Pressure.

Example Problem #1

1. First, determine the allowable stress (PSI). In this example, the allowable stress (PSI) is given as 10 .
2. Next, determine the wall thickness (in). For this problem, the wall thickness (in) is given as  5 .
3. Next, determine the outside diameter (in). In this case, the outside diameter (in) is found to be 3.
4. Finally, calculate the Pipe Pressure using the formula above:

Ppipe = (2*S*T/D)

Inserting the values from above and solving yields:

Ppipe = (2*10*5/3) = 33.33 (psi)

Example Problem #2

Using the same method as above, determine the variables required by the equation. For this example problem, these are provided as:

allowable stress (PSI) = 100

wall thickness (in) = 7

outside diameter (in) = 8

Enter these given values yields:

Ppipe = (2*100*7/8) = 175 (psi)