How To Measure Bedroom Square Footage. This is the equation used in our square footage calculator as well. To calculate the area of multiple rooms click Add a new shape to create a new calculator for every room or shape.
Dont forget to include any outside walls thickness or just measure from the exterior Reynolds said. Fix a tape measure or other measuring tool to one end of. Select the rooms shape enter your measurements and click the Calculate button to determine its area in square feet.
The formula for the area of a rectangular room is width x length as shown in the figure below.
Length x Width Area. Length x Width Area. How many square feet is a 12x12 room. To calculate the square feet of a room that is rectangular or square simply multiply the length of the room by the width.
