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Tile Calculator

See how many tiles you need for a floor or wall — from the area, your tile size, and a waste allowance for cuts and breakage.

Floor or wall area.
One side of the tile.
The other side.
10% for straight lay, 15–20% for diagonal.
Tiles needed (with waste)
Tiles for the area alone
Tiles per sq ft
Area covered

Buy from the same dye lot and keep a few spares for future repairs. Diagonal or patterned layouts need more waste. Estimate only.

No sign-up No ads Runs in your browser — your numbers never leave your device

How many tiles do you need?

Divide the area to cover by the area of one tile, then add a waste allowance for cuts, breakage, and future repairs. A standard 12×12 tile covers exactly one square foot; other sizes change the count.

Tiles = (area ÷ one tile's area) × (1 + waste %)

Quick FAQ

How much waste should I add?

10% for a simple straight layout, 15–20% for diagonal or intricate patterns, and more for lots of small cuts.

Should I buy extra?

Yes — keep a few tiles from the same dye lot for repairs, since exact colors are hard to match later.

Related: square footage calculator · flooring calculator · paint calculator · all free calculators.

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More questions

Is the Tile Calculator free to use?

Yes. The Tile Calculator is completely free, runs in your browser, and never asks for a signup, email, or download. Enter your numbers and the result updates instantly.

How accurate is this calculator?

It uses standard formulas and recalculates the moment you change a value, so the math is exact for the inputs you enter. Treat the result as a reliable planning estimate; for decisions with legal or tax consequences, confirm the figures with a qualified professional.

Does it work on my phone?

Yes. The calculator is mobile-friendly and works on any phone, tablet, or computer — there is no app to install and nothing to save.

Can I add this calculator to my own website?

Yes. Scroll to “Add this free calculator to your site” above and copy the embed snippet to place the live calculator on your blog or website for free.

Last reviewed: September 2026. Free to use, no signup — Tile Calculator by ToolWise Digital.

Add this free calculator to your site

Copy the snippet to embed the live calculator on your blog or website — free for any site. The small “Calculator by ToolWise Digital” credit line keeps it free; you're welcome to remove it, but we appreciate you leaving it.

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