Home & DIY
Tile Calculator
Work out how many tiles you need for any floor or wall.
Tile Calculator
Tiles needed
—
Area—
With waste—
Imperial units (feet & inches). Includes the waste allowance you set.
How many tiles do I need?
Divide the area to cover by the area of one tile, then add 10% for cuts and breakage. Enter your room size and tile size above — the calculator rounds up to whole tiles.
For diagonal or patterned layouts, allow 15% waste instead of 10%.
Frequently asked questions
How do I calculate tiles per square foot?
Divide 144 (square inches in a square foot) by the tile's area in square inches. A 12×12 inch tile is 1 sq ft, so 1 tile per square foot.
How much waste should I add?
Add about 10% for standard layouts, or 15% for diagonal or patterned tiles, to cover cuts and breakage.
Does it work for wall tiles?
Yes — measure the wall area (length × height) and enter it the same way.