Tile Calculator
Estimate number of tiles and cost for an area
Estimate how many tiles (and the cost) you need to cover an area, based on the room size and the tile dimensions.
Estimate the number of tiles needed for a rectangular area. Room size is in feet; tile size is in inches (or feet).
Floor Area
80.0
sq ft
Tiles Needed
88
incl. 10% waste
Estimated Cost
$132.00
How to Use This Calculator
- Enter the room length and width in feet.
- Enter the tile length and width (in inches or feet).
- Choose the tile unit.
- Optionally add a waste percentage.
- Enter the price per tile if needed.
- Review the tiles needed and estimated cost.
Why Use This Calculator?
- Ordering tiles for a floor or backsplash.
- Comparing tile sizes for cost and grout lines.
- Allowing for cuts and breakage.
Real-World Examples
An 80 sq ft floor with 12×12 in tiles, 10% waste
Each 12×12 tile covers 1 sq ft, so you need about 88 tiles including waste — roughly $132 at $1.50 each.
Frequently Asked Questions
Does this account for grout lines?
Only roughly through the waste percentage. Narrow grout lines barely change the count; wide joints may.
How much waste should I add?
10% for a straightforward layout; 15–20% for diagonal patterns or irregular rooms.
Should I buy extra tiles?
Yes — keep a box or two for future repairs, since matching tiles later can be difficult.
Important Disclaimer
Estimates based on the tile and room dimensions you enter. Layout, grout width, and breakage vary. Verify with your supplier before ordering.
Privacy
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