Tile Calculator
Estimate tile count and boxes for a floor or wall with waste margin
About this calculator
The Tile Calculator estimates how many tiles and boxes to buy for a rectangular floor. Enter room dimensions in feet and tile dimensions in inches; it computes the floor area, per-tile area, raw tile count, and the count with your waste margin applied (rounded up). Provide tiles per box to get a box count too. A 10–15% waste margin is typical for cuts and breakage. Non-positive dimensions return an error.
How to use the Tile Calculator calculator
- Enter your values into the input fields.
- Read the result — it updates instantly as you type.
- Adjust the inputs to compare scenarios.
- Copy the page URL to share the exact calculation.
Common examples
- 12×10 ft floor, 12×12 in tiles, 10% waste → 120 tiles needed, buy 132 (14 boxes of 10)
- 8×6 ft bathroom, 18×18 in tiles, 15% waste → 21.3 tiles needed, buy 25 (4 boxes of 8)
- 15×12 ft room, 24×12 in plank tile, 10% waste → 90 needed, buy 100
Frequently asked questions
How does the Tile Calculator calculator work?
Enter your numbers and the calculator applies the standard formula for this everyday task, showing the result and how it was reached. It handles the unit and rounding details so you do not have to.
When would I use the Tile Calculator calculator?
Whenever this comes up in daily life — planning, shopping, home projects, travel or work — and you want a quick, dependable answer instead of estimating or working it out by hand.
How accurate are the results?
The math runs at full precision internally and only the displayed value is rounded for readability. For real-world use the practical limit is the accuracy of the numbers you enter, not the calculation.
Can I share a specific calculation with someone else?
Yes. Every value you enter updates the URL, so copying the address bar and sharing the link reopens the exact same calculation for whoever clicks it.