Tile calculator
How much floor tile to buy for a room. Enter the room, your extra for cuts and the square feet a box covers.
- Area first, then boxes
- Check the label on the box
Multiply the length by the width for the square feet, add your extra for cuts, and divide by the square feet a box of tile covers. Round up to whole boxes. Updated · How we calculate
The editor opens with this room, inside sizes and wall height, ready to draw the rest of the home.
Our own starting value; no public source yet.
Our own starting value. Use the number on your box.
How we calculate
How we calculate
We found no public, neutral source for how much extra tile to buy, so we give no rule. The calculator starts at 10%, our own starting value; change it to what your installer advises.
The square feet come from our calculation core: length times width. The coverage per box is printed on the box, in square feet.
| What | Figure |
|---|---|
| Extra for cuts | 10%, our own starting value · No public source yet |
| Coverage per box | 10 sq ft, our own starting value; use your box · No public source yet |
No public, neutral source found yet; the starting values in the calculator are our own and you can change them.
Plan where the tiles go
Plan where the tiles go
This calculator counts tile for one floor. To see the tile in your plan, open the room in the editor and pick a tile under Floor with Change: the plan shows it with its real look at true size.
For a shower or a backsplash, tile a wall in bands up to a height, each band with its own tile size. Doors and windows come off, and the card of the wall counts the tiles per band.
Before you buy
Before you buy
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Count the cuts
Large tiles and diagonal layouts give more offcuts. Ask your installer how much extra to take.
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Same batch
Buy all tiles from one batch: color can differ between batches.
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Keep a few
Keep some spare tiles for repairs later.
Other materials
Other materials
- Work it out →
Flooring calculator
How much flooring to buy for a room, with extra for cuts and waste.
- Work it out →
Carpet calculator
How much carpet to buy for a room.
- Work it out →
Paint calculator
How many gallons of paint a room takes.
- Open the calculator →
Room square feet
The area of every room, and the total for the home.
How many boxes of tile do I need?
Take the square feet of the floor, add your extra for cuts, and divide by the square feet printed on the box. Round up to a whole box.
How much extra tile should I buy?
We found no public, neutral source for a rule, so we do not give one. The calculator starts at 10%, our own starting value; ask your installer for your layout.
Can I use this for wall tile?
Yes. Enter the width of the wall as the length and the tiled height as the width.
How do I measure a floor for tile?
Measure wall to wall at floor level, the longest way and the widest way. For an L-shaped floor, work out two rectangles and add them up.
Start with your first floor plan
Your first home is free for 30 days, no card needed. After that: $5 per home, or Pro from $24 a month.
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