Enter the total pressure (lbf/ft^2), the total CFM (ft^3/min), and the area (ft^2) into the calculator to determine the Static Pressure From CFM.
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Static Pressure From CFM Formula
The following formula is used to calculate the Static Pressure From CFM.
Pstatic = Ptotal – ((CFM/A)/4005)^2
- Where Pstatic is the Static Pressure From CFM (lbf/ft^2)
- Ptotal is the total pressure (lbf/ft^2)
- CFM is the total CFM (ft^3/min)
- A is the area (ft^2)
How to Calculate Static Pressure From CFM?
The following example problems outline how to calculate the Static Pressure From CFM.
Example Problem #1
- First, determine the total pressure (lbf/ft^2). In this example, the total pressure (lbf/ft^2) is given as 100 .
- Next, determine the total CFM (ft^3/min). For this problem, the total CFM (ft^3/min) is given as 30 .
- Next, determine the area (ft^2). In this case, the area (ft^2) is found to be 2.
- Finally, calculate the Static Pressure From CFM using the formula above:
Pstatic = Ptotal – ((CFM/A)/4005)^2
Inserting the values from above and solving yields:
Pstatic = 100 – ((30/2)/4005)^2 = 99.99 (lbf/ft^2)
Example Problem #2
Using the same method as above, determine the variables required by the equation. For this example problem, these are provided as:
total pressure (lbf/ft^2) = 500
total CFM (ft^3/min) = 40
area (ft^2) = 4
Enter these given values yields: Pstatic = 500 – ((40/4)/4005)^2 = 499.99 (lbf/ft^2)
