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Tile Calculator

Estimate floor or wall tile count including waste percentage.

Renovating a roomStep 4 of 5

Best for: Planning a tiling job and ordering materials.

Complete guide
Country (units):

Input

How it's calculated & sources
The Tile Calculator uses the standard method for this calculation. It runs entirely in your browser, so your inputs are never uploaded. Last reviewed June 2026.

Free & no sign-up · runs entirely in your browser. Results are estimates for general information, not professional advice — verify important decisions with a qualified expert. Last reviewed June 2026.

Continue your journey

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Complete guide

Quick answers

Short, sourced answers to the questions people (and AI assistants) ask most.

What is Tile?
A tile calculator works out how many tiles you need to cover a floor or wall, including an allowance for cuts and breakage.
Why does Tile matter?
The number of tiles to buy. Keep a few spares from the same batch for future repairs, since later batches can differ slightly in shade.
How is Tile calculated?
Divide the area you are covering by the area of one tile to get the base count, then add a waste factor. Ten percent is a common allowance; use more for diagonal layouts or rooms with lots of cuts. Formula: Tiles = (Area to cover / area of one tile) x (1 + waste %).
What is a good tile?
Add about 10% waste for straight layouts and 15-20% for diagonal or intricate patterns.
What are common tile mistakes?
Ordering the exact count with no waste margin.
When should you use the Tile Calculator?
Planning a tiling job and ordering materials.

What is the Tile Calculator?

A tile calculator works out how many tiles you need to cover a floor or wall, including an allowance for cuts and breakage.

How the Tile Calculator works

Divide the area you are covering by the area of one tile to get the base count, then add a waste factor. Ten percent is a common allowance; use more for diagonal layouts or rooms with lots of cuts.

Tiles = (Area to cover / area of one tile) x (1 + waste %)

What's a typical value?

Add about 10% waste for straight layouts and 15-20% for diagonal or intricate patterns.

Tiles needed by floor area (incl. 10% waste)

5 m²622816
10 m²1235531
15 m²1848246
20 m²24510962
30 m²36716392

Common mistakes to avoid

  • Ordering the exact count with no waste margin.
  • Mixing units between the room area and the tile size.
  • Not allowing extra for diagonal cuts or complex shapes.
  • Forgetting spares for future repairs.

Keywords: tile, floor, wall, waste.

Sources: General trade guidance

Reviewed by the Free Tools Galaxy editorial team · Updated June 2026 · Calculated privately in your browser.

Frequently asked questions

Is the Tile Calculator free to use?+

Yes. Every tool on Free Tools Galaxy is 100% free, runs in your browser and requires no signup.

How accurate is the Tile Calculator?+

Tile Calculator uses the standard tile formula in double-precision arithmetic, so the same inputs always produce the same result and you can verify any figure by hand. It is an educational estimate — real-world outcomes depend on your actual rates, rules and assumptions.

Do you store my inputs?+

No. The Tile Calculator runs entirely in your browser. Nothing is uploaded or saved to a server.

Can I use the Tile Calculator on mobile?+

Yes — the interface is fully responsive and works on phones, tablets and desktops.

What are common mistakes to avoid?+

The most frequent mistake is mixing units. Double-check your inputs use a single, consistent unit before clicking Calculate.

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Title: I built/used this free tile calculator — instant, no signup

Body: Estimate floor or wall tile count including waste percentage. Try it: https://freetoolsgalaxy.com/tools/tile-calculator
LinkedIn post
Tile Calculator on Free Tools Galaxy — Estimate floor or wall tile count including waste percentage. https://freetoolsgalaxy.com/tools/tile-calculator
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# Tile Calculator — the free tool I keep coming back to

Estimate floor or wall tile count including waste percentage.

Try it: https://freetoolsgalaxy.com/tools/tile-calculator
Quora answer
The fastest way is to use a free in-browser tile calculator: https://freetoolsgalaxy.com/tools/tile-calculator. Estimate floor or wall tile count including waste percentage.

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<iframe src="https://freetoolsgalaxy.com/tools/tile-calculator?embed=1" title="Tile Calculator" loading="lazy"
  style="width:100%;height:600px;border:0;border-radius:16px;background:#0b1020"
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<p><a href="https://freetoolsgalaxy.com/tools/tile-calculator" target="_blank" rel="noopener">Powered by Tile Calculator on Free Tools Galaxy</a></p>
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<div style="position:relative;padding-bottom:75%;height:0;overflow:hidden;border-radius:16px">
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    style="position:absolute;inset:0;width:100%;height:100%;border:0" allow="clipboard-write"></iframe>
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[Tile Calculator — free online tool](https://freetoolsgalaxy.com/tools/tile-calculator)

<iframe src="https://freetoolsgalaxy.com/tools/tile-calculator?embed=1" width="100%" height="600" frameborder="0"></iframe>
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<a href="https://freetoolsgalaxy.com/tools/tile-calculator" target="_blank" rel="noopener">Try the free Tile Calculator</a>

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I built a free fraction calculator that works instantly in the browser — no signup, no ads in your face
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Hey r/[subreddit],

I kept needing a quick fraction calculator and most options online were slow or behind paywalls, so I built one that:

• Runs 100% in your browser (your data never leaves your device)
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It covers the standard fraction use cases (fraction, math) and links out to the formula + worked examples if you want to learn the math.

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