Worked example

How Many Tiles for 100 Square Feet?

This example uses a known 100 sq ft area and 12 in by 12 in tiles, then shows tile count and optional box count.

Flooring & Tile

Calculator inputs

Tile Calculator Results

Results update in your browser as you edit inputs. They are planning estimates, not complete shopping lists.

Enter project dimensions to calculate material quantity.

Inputs used in this example

Known area: 100 square feet.
Tile size: 12 in by 12 in.
Waste factor: 10%.
Package quantity: 10 tiles per box.

Expected output

The calculator estimates 100 tiles before waste, 110 tiles with 10% waste, and 11 boxes if each box contains 10 tiles.

When to adjust this example

Increase waste for diagonal patterns, borders, small rooms with many cuts, or fragile tile.
Use the actual tiles-per-box or box coverage from the package.
This example does not include grout, mortar, trim, underlayment, or tools.

Formula explanation

A 12 in by 12 in tile covers 1 square foot.
Divide 100 square feet by 1 square foot per tile.
Apply the 10% waste factor and round up.
Divide the waste-adjusted tile count by tiles per box and round up.

Main calculator

Use the full Tile Calculator to change dimensions, waste factor, and optional user-entered unit price.

FAQ

Can I use a different tile size?

Yes. Change tile width and tile height in the embedded calculator.

Does this include grout spacing?

No. It estimates tile units from visible tile size only.