🔲 Tile Calculator
Tiling math is floor area divided by one tile's area — plus waste for edge cuts, which always surprises first-timers. Pick your tile size and get the count with a 10% margin built in.
For diagonal layouts or rooms with many corners, bump the waste allowance to 15% in your head before ordering.
How to use this calculator
Enter your floor's length and width plus the tile size to get how many tiles to buy, with 10 percent waste for cuts.
- Measure the floor's length and width in feet.
- Pick the Tile size, such as 12 by 12 inches.
- The count appears instantly.
- Buy the Tiles to buy figure, which already includes waste.
Frequently asked questions
How is the tile count calculated?
Floor area in square feet is divided by one tile's area in square feet, then multiplied by 1.1 for waste and rounded up to a whole tile.
Can you give a worked example?
A 10 by 12 foot floor is 120 square feet. With 12 by 12 inch tiles at 1 square foot each, that is 120 tiles, or 132 to buy with the 10 percent waste allowance.
Which tile sizes are supported?
12 by 12, 18 by 18, 24 by 24 and 12 by 24 inches, covering the most common floor tile formats.
When should I allow more than 10 percent waste?
For diagonal layouts or rooms with many corners and obstacles, plan on 15 percent waste instead of 10.