How To Calculate Flooring Square Footage

The first step in figuring out how much it will cost to replace your flooring is to determine the square footage of the room or rooms you are reflooring. The formula for figuring this out is pretty straightforward, all you have to do is multiple the length of the room by the width. So if your room is 10 feet by 12 feet, 10 x 12 = 120 square feet.

One of the problems that can occur is if your room isn’t exactly a certain number of feet long or wide. There are 2 ways to approach this problem. 1) You can simply round up to the next foot. You usually want to allow 10% extra when purchasing flooring anyway for incidental issues that arise. 2) Get the total number of square inches the room is, then divide to get the square footage. Getting square inches is exactly like getting square inches, except the math is a bit tougher, so I recommend using an old fashioned calculator.

Example: A room is 10 feet 7 inches by 12 feet 9 inches. 10’7″ is 127 inches, and 12’9″ is 153 inches. 127 multiplied by 153 = 19,431 square inches. Because one square foot is 144 square inches, divide the total number of square inches by 144, in this case 19,431 divided by 144 equals 134.9375 square feet.

Once you have the square footage of the room, add it to the square footage of the other rooms you are reflooring for the total project square footage. Once done, we invite you to use our flooring calculator to determine how much your project will cost to complete.