Enter the total house area (ft^2) into the Flood Vent Size Calculator. The calculator will evaluate the Flood Vent Size.

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## Flood Vent Size Formula

The following two example problems outline the steps and information needed to calculate the Flood Vent Size.

FVS = A

Variables:

- FVS is the Flood Vent Size (square inches)
- A is the total house area (ft^2)

To calculate the flood vent size, simply take the total house area in ft^2, and make this value the flood vent size with units of inches squared.

## How to Calculate Flood Vent Size?

The following steps outline how to calculate the Flood Vent Size.

- First, determine the total house area (ft^2).
- Next, gather the formula from above = FVS = A .
- Finally, calculate the Flood Vent Size.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

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

total house area (ft^2) = 900

FVS = A ** **= ?