`A = 2 * L * H + 2 * W * H `

Enter a value for all fields

The Area of the Walls in a Room calculator computes the surface area of the interior walls in a rectangular room based on the length, width and height of the room. 

INSTRUCTIONS: Choose units and enter the following: 

• (L)  Length of Room
• (W) Width of Room 
• (H)  Height of Room

Total Area (A): The calculator computes the area in square feet.  However, this can be automatically converted into other area units via the pull-down menu. Note, this does not include the ceiling or floor. 

The Math / Science

The formula to compute the surface area of walls in a room is:

      `A = (2*L*H + 2*W*H)`

where:

• A = interior surface area of a room (excluding the floor and ceiling)
• L = length of the room
• W = width of the room
• H = height of the room

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• Cost to paint or prime a room.
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• Cost of studs needed to frame a room