Tiles Calculator
Find how many floor tiles and skirting tiles a room needs from its size, the tile size and a wastage allowance.
Enter your numbers
Example: 12
Example: 10
Example: 2
Example: 2
Example: 10
Example: 40
Recent
Formula
How the calculation works
The calculator multiplies the room length by the room width to get the floor area in square feet.
It divides that area by the area of one tile, adds the wastage allowance and rounds up to a whole tile.
Skirting tiles are worked out separately from the wall perimeter divided by the tile length and added to the floor count.
Common mistakes
- Forgetting the wastage allowance, since tiles are cut at the edges and a few always break during laying.
- Leaving out skirting tiles entirely, which then have to be bought later and may not match the same shade batch.
When to use it
- Homeowners use it to order the right number of tiles before a floor is laid, avoiding a second trip to the shop.
- Contractors use it to prepare a material list that includes skirting tiles, which are often forgotten in a quick estimate.
Worked example
For a room 12 feet by 10 feet with 2 foot tiles and 10 percent wastage, the floor area is 120 square feet, the floor tiles are 33, the skirting over 40 feet needs 20 tiles and the total is 53 tiles.
Common questions
Why round up the tile count?
Tiles are sold whole, so the count is rounded up and a wastage margin added, otherwise a partly cut row at the edge cannot be finished.
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