120 ft2 with 12 x 12 in tile
- Each tile area
- 1 ft2
- Waste added
- 10%
- Area with waste
- 132 ft2
Tile Calculator
Use this free tile calculator to estimate how many tiles you need from project square feet and tile dimensions.
Research-backed assumptions Formula steps Examples included Private in-browser use
Formula steps
- Convert tile dimensions from square inches to square feet.
- Add waste to the project area.
- Divide adjusted area by tile area and round up to a whole tile.
How to use the tile calculator
- Enter project area, tile length, tile width, and waste percent.
- Press Estimate tile to calculate whole tiles needed.
- Check tile boxes, grout spacing, layout pattern, cuts, and breakage before buying.
- Use Square Footage Calculator first if you need room area.
Common uses
Estimate floor or wall tile count.
Add a waste percentage before buying.
Compare tile sizes for the same room.
Convert tile dimensions into square feet per tile.
Examples
132 tiles
Tile count estimate
Tile quantity estimate
Frequently asked questions
Plain-language answers about when to use the tool, what it does with your inputs, what to double-check, and how privacy works.
When should I use the Tile Calculator?
Use it when your task matches one of these common needs: Estimate floor or wall tile count. Add a waste percentage before buying. It works best when you already know the values, dates, units, or settings the page asks for.
What is the Tile Calculator doing with my inputs?
In plain language: The calculator converts tile length and width from square inches to square feet, adds waste to project area, then rounds up the tile count. The examples on the page are there so you can compare your inputs with a filled-out calculation before copying the answer.
What should I double-check before trusting the answer?
Real projects need layout planning, cuts, breakage, pattern matching, grout spacing, boxes, and product coverage checks. Also check that you used the right unit, date, scale, or mode because small input changes can change the result.
Does the site save what I enter?
No. The calculator runs in your browser tab. Your recent answers stay only on the page while you use it, and they are not sent to a server.
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