Tile Count
Count how many tiles you need for a floor or wall.
About Tile Count
A tile's area in square feet is its size squared divided by 144 inches. Dividing the room area by that gives the tile count, with waste added for cuts. Tiles are fragile and grid edges never line up perfectly, so buying extra with a waste margin avoids running short mid-project.
Formula
Tile Count
Tiles = room area / (tile size² / 144)
- waste
- Extra tiles for cuts and breakage
Worked example
With the default values below, Tile Count returns Room Area of 120.0. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Area lengthminimum 0 ft
- 10 ft
- Area widthminimum 0 ft
- 12 ft
- Tile sizeminimum 0.01 inches
- 12 inches
- Waste allowanceaccepts 0–50 %
- 10 %
Results
- Room Area
- 120.0 sq ft
- Tile Area
- 1.000 sq ft
- Tiles Needed
- 120
- Tiles with Waste
- 132
Step by step
- 1Values used
- 2Tile Count
- 3Room Area= 120.0 sq ft
- 4Tile Area= 1.000 sq ft
- 5Tiles Needed= 120
- 6Tiles with Waste= 132
Assumptions and limits
- The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Tile Count calculated?
Tiles = room area / (tile size² / 144) A tile's area in square feet is its size squared divided by 144 inches. Dividing the room area by that gives the tile count, with waste added for cuts.
Why does Tile Count matter?
Tiles are fragile and grid edges never line up perfectly, so buying extra with a waste margin avoids running short mid-project.
What values do I need to enter?
This calculator takes 4 inputs: Area length, Area width, Tile size, Waste allowance. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.