Calculate wall area from length and height, subtract openings for net area, and estimate paint gallons or drywall sheets from the result.

Wall Area Calculator

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Wall Area Formula

The following two example problems outline the steps and information needed to calculate the Wall Area.

WA = WL * WH
  • Where WA is the Wall Area (ft^2)
  • WL is the wall length (ft) 
  • WH is the wall height (ft) 

To calculate the wall area, multiply the wall length by the wall height.

How to Calculate Wall Area?

The following example problems outline how to calculate Wall Area.

Example Problem #1:

  1. First, determine the wall length (ft).
    • The wall length (ft) is given as: 10.
  2. Next, determine the wall height (ft).
    • The wall height (ft) is provided as: 8.
  3. Finally, calculate the Wall Area using the equation above: 

WA = WL * WH

The values provided above are inserted into the equation below and computed.

WA = 10 * 8 = 80.00 (ft^2)

Example Problem #2: 

For this problem, the variables required are provided below:

wall length (ft) = 12

wall height (ft) = 10

Test your knowledge using the equation and check your answer with the calculator..

WA = WL * WH = ?