Estimates — add extra for waste and confirm with your supplier.
Rectangle = length × width, circle = π × radius², and L-shape = overall area minus the cut-out rectangle. Results convert to square meters and square yards automatically.
Plan your whole project with our other free DIY calculators.
Multiply length by width for rectangles; for circles use π × radius². The tool handles L-shapes too.
Enter the overall length and width, then subtract the missing corner as a cut-out.
Add 5–10% for cuts and waste on most flooring and tile projects.
Divide square feet by 9. Carpet is often sold by the square yard.
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