Tile Calculator

Estimate the number of ceramic, porcelain, or stone tiles needed for floors or walls, factoring in tile size, grout lines, and waste.

How to use this calculator

1. Enter room dimensions.
2. Enter tile size & grout.
3. Read tiles and boxes needed.

Formula & method

Tile Grid Formula

Tiles = Room Area / (Tile + Grout Area)

Grout gap accounted.

Example

120 sq ft with 12x12 tiles = 132 tiles (14 boxes).

Key insights

• Diagonal pattern requires 15% waste.

How to interpret your result

Boxes Needed

Total tile boxes to order.

Frequently asked questions

Keep extra?

Always keep 1 box extra for repairs.

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• Square Footage Calculator — Calculate area in square feet or square meters for rooms and lots.
• Concrete Calculator — Calculate concrete volume in cubic yards and number of 80lb/60lb bags.

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