Enter the length and width of the countertop into the calculator to determine the square footage; this calculator can also evaluate the length or width, given the square footage and other variable are known.

Countertop Square Footage Formula

The following formula is used to calculate the square footage of a countertop:

 SF = L * W

Variables:

  • SF is the square footage of the countertop
  • L is the length of the countertop
  • W is the width of the countertop

To calculate the square footage of a countertop, multiply the length of the countertop by the width of the countertop.

What is a Countertop Square Footage?

Countertop square footage refers to the total surface area of a countertop, measured in square feet. It is calculated by multiplying the length and width of the countertop. This measurement is crucial when planning for the installation of a new countertop, as it determines the amount of material needed. It also plays a significant role in cost estimation since most countertop materials like granite, quartz, marble, etc., are priced per square foot. Therefore, knowing the square footage of your countertop allows you to budget accurately for your project. Additionally, it helps in understanding the space available for placing appliances or doing meal preparation.

How to Calculate Countertop Square Footage?

The following steps outline how to calculate the Countertop Square Footage.


  1. First, measure the length of the countertop in feet.
  2. Next, measure the width of the countertop in feet.
  3. Next, multiply the length by the width to find the square footage.
  4. Finally, calculate the Countertop Square Footage.
  5. After obtaining the measurements and performing the calculation, check your answer with a calculator or verify it with a professional.

Example Problem:

Use the following measurements as an example problem to test your knowledge.

Length of countertop (ft) = 6

Width of countertop (ft) = 3