- Gather the essential tools for measurement such as tape measure, pen, paper, and a calculator.
- Make a rough sketch of your countertop and the backsplash area, and add the spaces for your sink and cooktop.
- Measure the countertop length twice from wall to wall (in inches) and jot down the measurement on your drawing.
- Measure the depth of the countertops from the wall and the backsplash height.
- Determine the estimated square footage by multiplying the countertop’s length by the countertop’s depth and dividing the answer by 144.