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Tile Calculator

Work out how many tiles and boxes you need, including waste.

Floor length (ft or m)

Floor width (ft or m)

Tiles to calculate for

Tile length (in or cm)

Tile width (in or cm)

Unit

Tiles per box

Price per box

Grout needed (sq ft per bag)

Waste allowance

Tiles needed

Boxes needed

Floor area

Total cost

Grout bags

Area with waste

Cost per unit area

Waste is not optional on a real job. Cuts at the edges, diagonals, and any mistakes all consume tiles, and 10% is the usual minimum for a straight lay. Buying whole boxes means you can end up with more than the calculation shows, which is worth checking against the shop's returns policy.

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What Is Tile Calculator?

The Tile Calculator works out how many tiles and boxes you need to cover a floor, including a waste allowance. It handles imperial and metric sizes, shows grout bag counts, and gives the cost per square foot.

Who Uses the Tile Calculator?

Tilers and DIYers use it to know exactly what to order, and to avoid coming up short mid-job. The waste presets match the usual rules for straight lay, diagonal, and 45 degree patterns.

How to Use the Tile Calculator

Enter the floor length and width.
Add the tile dimensions and tiles per box.
Pick a waste allowance, or type your own.
Read the tile and box counts and the total cost.

Why Choose Our Tile Calculator?

Waste presets for straight, diagonal, and complex lays
Works in feet and inches or metres and centimetres
Grout bag estimate included

Try the Tile Calculator above — it is free, fast, and works on any device. Bookmark this page to return whenever you need it.