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Square Footage Calculator
Calculate square footage for rectangles, triangles, and circles with quantity, waste allowance, and optional material cost.
AREA
LOCAL
NO DATA SENT
AREA BENCHSQUARE FEET / MATERIAL / COST
INPUTMEASURE THE AREA AND MATERIAL ALLOWANCE
Use quantity for repeated rooms, walls, panels, beds, or other matching areas.
NET AREA—
MATERIAL AREA—
SQUARE YARDS—
EST. MATERIAL COST—
HOW IT WORKSSHAPE AREA × QUANTITY + WASTE
READYChoose a shape and enter the dimensions.
LOCAL TOOL: Measurements and prices stay entirely in your browser.
FIELD NOTE / 055
Square footage tells you the two-dimensional area a project covers.
Use the net area for the exact measured surface. For flooring, tile, paintable surfaces, landscaping material, or other projects where cuts and waste matter, add an extra percentage and use the material-area result.