Estimate the number of rectangular tiles needed for a floor or wall area, including waste.
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Floor area, tile quantities, paint coverage and interior finishing material estimates.
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A 12×12 inch tile covers 1 square foot, so 120 sq ft with 10% waste needs about 132 tiles.
Estimate the number of rectangular tiles needed for a floor or wall area, including waste. It is designed for quick estimates and everyday problem solving. When a calculation affects a contract, tax filing, medical decision or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
A 120-square-foot floor uses about 120 nominal 12-by-12-inch tiles; 10% waste increases the plan to 132 before packaging.
Calculate tile quantity using actual tile face size, not the nominal carton label alone.
Grout gaps, layout pattern, cuts, spare replacements, and manufacturer cartons affect ordering.
Related tools: Square Footage Calculator · Concrete Calculator
Estimate the number of rectangular tiles needed for a floor or wall area, including waste.
Tiles needed = surface area ÷ tile area, increased by waste, then rounded up.
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