Tile Calculator
How many tiles do you need for a floor or wall? Enter the area, tile size and waste allowance, and get the tile count and boxes — with the right waste for straight, diagonal or herringbone layouts.
10% for straight lay, 15% for diagonal or large rooms, 20% for herringbone.
Tiles for 80 sq ft
88 tiles — 9 boxes at 10 per box
Area: 80 sq ft (7.4 sq m). Each tile covers 1.00 sq ft, so 80 tiles cover the floor exactly and 88 tiles cover it with 10% waste for cuts and breakage. Keep a spare box — dye lots change, and a matching tile may not exist next year.
Estimate. Measure the real room (including closets and under appliances) and confirm the tiles-per-box figure on the box label — it varies by tile.
Formula used: Tiles = (area ÷ tile area) × (1 + waste%). Boxes = tiles ÷ tiles per box, rounded up.
How this estimate works: The floor area is divided by the area of one tile to get the exact count, then a waste allowance is added for cuts at edges and around fixtures, plus a few spares. Diagonal and herringbone layouts waste far more than a straight grid, which is why the allowance is a choice, not a fixed number.
How the tile calculator works
The floor area is divided by the area of one tile to get the exact count, then a waste allowance is added for cuts at edges and around fixtures, plus a few spares. Diagonal and herringbone layouts waste far more than a straight grid, which is why the allowance is a choice, not a fixed number. Keep a spare box: dye lots change, and a matching tile may not exist next year. This is an estimate — confirm the tiles-per-box figure on the box label.
Try next: Flooring Calculator · Laminate Flooring Calculator · Vinyl Plank Flooring Calculator
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