Measuring the Square Footage of Granite Countertops

If you know how to properly measure granite for your countertops, it will be easier for you to come up with a reasonable estimate of the cost of your project. Some basic math will help you calculate the amount of granite you will need for the job. Having the correct figures are vital to avoid ordering too much and wasting money or ordering too little and having trouble finding matching granite to complete your project.

You Will Need:

–          Tape Measurer

–          Calculator

–          Pen or Pencil

–          Paper

Step 1: Measure the length of all your countertops, including the base cabinets and the island area if necessary. Whatever that length is will also be the length of the backsplash needed, excluding islands. Islands are free standing and do not have a wall against them. Measure the countertops in inches for accuracy.

Step 2: The standard width of a countertop is 26 inches. Use the figure you came up with for your countertop length and multiply by 26. For example, if your countertop is 144 inches, when multiplied by 26 your total would be 3,744 inches. To get an accurate figure of the amount of granite needed for the backsplash, keep in mind that the average backsplash is 4 inches. Multiply the total length in inches by 4. Using the figure in the previous example, you would multiply 144 by 4, resulting in 576 inches.

Length (in inches) x 27 inches = Countertop area

Length (in inches) x 4 inches = Backsplash area

Step 3: Add the two totals together and that is your overall estimate of the granite needed in inches. To convert to square feet, divide by 144. For example, your countertop length was 3,744 inches and the backsplash came to 576 inches. That is a total of 4,320 inches. 4,320 divided by 144 comes to a total of 30 square feet of granite.

Countertop area (in inches) + Backsplash area (in inches) = total area (in inches)

To solve for the square footage: Total area (in inches) ÷ 144 = Total area in square feet

This method of calculation is meant to give you an estimate of the granite needed for a job. Granite is available in different colors, patterns and at different levels of quality. The price of granite is measured by the square foot. If you have ballpark estimate, it is easier to get an idea of whether or not a particular type of granite will fit in your budget. This is for estimating purposes only. Your Premier Surfaces professional installer should carefully measure for your new countertops before ordering to make sure that the correct amount is ordered.

  • Our kitchen looks awesome!

    “I wanted to tell you what a wonderful experience Mike and I had with putting in our granite counters last week. We had never done a make-over before, so when my husband suggested putting in granite counters I groaned.  Little did I know at the time how smooth and painless everyone at Premier Surfaces would make it. Every encounter was extremely professional. Our kitchen looks awesome and I really appreciate having the opportunity to work with such a great group of people. If we ever decide to do anything like that in the future we will use definitely use Premier Surfaces.”

    Mike and Janet

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    -Maggie