Tile Calculator
Enter the area and tile size to estimate the number of tiles, including a waste factor and optional cost.
Results
- Tiles needed
- 88
- Area
- 80 sq ft
- Coverage per tile
- 1 sq ft
Estimates only. Round up and buy a little extra to account for waste, spills, and breakage.
Enter the area and tile size to estimate the number of tiles, including a waste factor and optional cost.
How to use the tile calculator
- Enter the area length in ft.
- Enter the area width in ft.
- Enter the tile length in in.
- Enter the tile width in in.
- Enter the waste factor in %.
- Optionally add a price to estimate the total project cost.
- Read your quantities instantly — no sign-up, and you can print the estimate to take to the supplier.
Worked example
Inputs
- Area length
- 10 ft
- Area width
- 8 ft
- Tile length
- 12 in
- Tile width
- 12 in
- Waste factor
- 10 %
Results
- Tiles needed
- 88
- Area
- 80 sq ft
- Coverage per tile
- 1 sq ft
Using the example values above, the tile calculator returns 88 (tiles needed). Change any field to match your own project and the numbers update instantly.
How much extra should I order?
Always order a little extra. A 5% waste factor suits simple, square projects; 10% is right for most jobs; bump it to 15–20% for irregular shapes, diagonal patterns, or uneven ground. Running short almost always costs more than the leftover material.
Formula
Tiles = area ÷ tile area, × (1 + waste%). Tile area = tile length × tile width ÷ 144.
Frequently asked questions
- How much extra tile should I buy?
- Add 10% for straight layouts and 15% for diagonal or patterned installs.
- How do I count tiles for walls?
- Use the wall area instead of floor area and deduct large openings.
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