Construction & Home
Tile Calculator
A tile calculator estimates how many tiles you need from installation area, tile dimensions, and waste allowance.
Quick answer
Converts tile size into square feet.
What this tells you
- •Converts tile size into square feet.
- •Divides total area by tile area.
- •Adds waste percentage for cuts and breakage.
How to Use
- 1Enter area width and length in feet.
- 2Enter tile size in inches.
- 3Set waste percentage, then calculate total tiles.
How It Works
Formula
Tiles = ceil((area ft2 / tile ft2) x (1 + waste%))Area and tile dimensions are converted into matching units, then waste is applied before rounding up.
Calculation note: values are processed in the order shown above, using the current input units.
Worked Examples
Kitchen floor
Area10x12 ft
Tile12x12 in
Waste10%
Result132 tiles
Common mistakes
- Skipping waste for diagonal layout
- Mixing inch and foot inputs
- Not rounding up to full tile count
Frequently Asked Questions
No. Use a small additional waste percentage if grout spacing and pattern complexity affect coverage.