Tile Calculator
Estimate tile count, project square footage and whole boxes from your room dimensions, tile size and chosen waste allowance.
Tile floor measurements
See how project length and width define the tile area; use the coverage printed on your tile box for the purchase quantity.
Start with the essentials
Enter the project size first. Tile dimensions, box coverage and waste stay adjustable below.
CUSTOMIZE PROJECT DETAILSAdjust assumptions & product details+
Examples and related project steps
Check the worked examples or continue with the next part of your material plan.
Check the method or common questions
Method, formula & assumptions
Floor and tile estimating
Formula: Finished area = length × width. The selected waste percentage is added before dividing by the coverage printed on each box to determine whole packages to buy.
Worked example: Example: a 200 ft² room with 10% waste requires 220 ft² of planned coverage before rounding up to whole boxes.
Before you buy: Pattern, room shape, plank or tile size, breakage and matching requirements affect waste. Complex layouts generally need a larger allowance than simple rectangular rooms.
Tile Calculator FAQ
Why does PlanDIYBuild round boxes up?
You cannot normally purchase a fraction of a sealed flooring or tile box, so package counts are rounded to the next whole box.
What waste percentage should I use?
It depends on the product and layout. Use the project or manufacturer recommendation when available, especially for diagonal or patterned installations.
Continue your Flooring & Tile project
Use the Flooring & Tile planning hub for related calculators and quick-reference guides.
Useful products for this project
Photos are representative examples of the item type—not the exact Amazon listing. Amazon links open current search results so you can compare brands, sizes and prices.
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