🏠 Home & DIY

Tile Calculator

Calculate how many tiles you need for a floor or wall, with waste allowance.

ft
ft
in
in
%

Results

Tiles needed
88
Boxes
9
Area
80.0 ft²

📊 Tile Calculator chart

How the tiles needed changes as the waste varies. The orange dot marks your current value.

What is the Tile Calculator?

Calculate how many tiles you need for a floor or wall, with waste allowance. Order the right amount the first time. These construction and DIY calculators estimate materials for common home projects and include sensible waste allowances.

Tile Calculator – free online home & diy tool illustration
Tile Calculator — free, exact and private.

How to use the Tile Calculator

  1. Enter your area length, your area width, your tile length, your tile width and the remaining fields.
  2. Results update automatically as you type; you can also press Calculate.
  3. Read the output: tiles needed, boxes, area.
  4. Use the 📊 chart to see the result visually, then copy or share it.

Formula and method

Tiles = Area (in²) ÷ tile area (in²) × (1 + waste)

Worked example

With area length = 10 ft, area width = 8 ft, tile length = 12 in, tile width = 12 in, waste = 10 %, the Tile Calculator returns tiles needed: 88; boxes: 9; area: 80.0 ft².

Tips for better results

  • Add 5–15% for waste, cuts and breakage depending on the material.
  • Measure twice and round up when buying — returns are easier than second trips.
  • Coverage figures vary by product, so check the label or spec sheet.

⚠️ Material estimates are approximate. Follow local building codes and manufacturer instructions.

Frequently asked questions

What does the Tile Calculator do?

Calculate how many tiles you need for a floor or wall, with waste allowance.

How is it calculated?

The Tile Calculator uses this method: Tiles = Area (in²) ÷ tile area (in²) × (1 + waste).

Can you show an example?

With area length = 10 ft, area width = 8 ft, tile length = 12 in, tile width = 12 in, waste = 10 %, the Tile Calculator returns tiles needed: 88; boxes: 9; area: 80.0 ft².

Is the Tile Calculator accurate?

It uses standard published formulas and is tested against known values, but results are estimates for guidance. Material estimates are approximate. Follow local building codes and manufacturer instructions.

Is this tool free and private?

Yes — the Tile Calculator is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.

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