Floor Tile Calculator
Work out how many tiles a floor, wall or laminate installation needs: enter a room's dimensions or its area directly, pick a common tile size or a custom one, add a waste allowance for cuts, and get a shopping list in tiles and boxes.
Processed entirely in your browser — nothing you enter here is ever uploaded.
Result
About this tool
This page opens the tile calculator set up for floor tiling: enter the room as length × width, or switch to a direct area if you already have it from a floor plan, and pick the tile size you're laying. The calculator divides the area you need to cover by the area of one tile, adds the waste allowance, and rounds up to a whole tile.
Floors take the full 10% standard waste for a straight lay because most rooms have at least one wall that isn't a clean multiple of the tile size, plus doorways and closet openings that eat into whole tiles. Larger floor tiles (18×18in and up) actually waste more material per cut piece even at the same percentage, since a rejected offcut from a big tile is a bigger loss than from a small one — factor that into your budget if you're choosing between sizes.
Floors are also where grout width matters most for the finished look: wider gaps hide size variation between tiles (common on handmade or rustic lines) but read as busier underfoot, while narrow gaps on rectified tiles give the cleanest large-format look. Set the grout gap field to see the effective floor spacing either way. Everything is calculated locally in your browser.
Example. A 10 by 10 foot floor with 12-inch tiles and the 10 percent waste option returns 110 tiles.
Limit. Waste is only the 10 percent or 15 percent option, and a grout gap is reported as a module size without changing that tile count.