Calculate the square footage of a room, lot, or rectangular space — with an optional cost estimate.
For a rectangular space, square footage is just length × width. The quantity field lets you total up several identical rooms or sections at once — useful for flooring, tiling, or paint jobs that span more than one room.
Enter a price per square foot — for materials like flooring, turf, or paint coverage — and the calculator multiplies it by the total area to give a rough project cost. This is an estimate only; always check actual material coverage rates and add a margin for waste and cuts.
Yes — each dimension converts independently before the area is calculated, so entering length in feet and width in meters works correctly.
Split it into rectangles (or other simple shapes), calculate each separately, and add the results together.
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