The Total Surface Area of a Room calculator computes the surface area of the interior of a rectangular room including the walls, ceiling and floor based on the length, width and height of the room.
INSTRUCTIONS: Choose units and enter the following:
Total Surface Area (A): The calculator will returns:
The areas are returned in square feet. However, these can be automatically converted to other area units (e.g. square meters) via the pull-down menu.
The surface area of the interior of a room including the walls and ceiling is the sum of the area of the walls and the area of the ceiling. These areas can be determined by the dimensions of the room. The total area is the sum of:
For the total surface area of the interior of a room including walls, ceiling and floor, use the following equation:
A = 2*(L*H) + 2*(W*H) + 2*(L*W)
To compute the area of the interior of the room without the floor in the following equation: