So, you’ve researched high and low and are finally all set on the type of tiles you want for your room. But now comes the second part, how do I calculate the number of tiles in a room?
Well, we’ve got you covered. It’s relatively simple and you don’t need to become a mathematician throughout that process.
How To Calculate The Number of Tiles in A Room.
Gather this information beforehand:
- The size of your room in square feet (eg: 100 sqft)
- The size of your tile (eg: 1×1 or 2×3 etc.)
- Calculator or your brain juice
- Pen and paper (or you can jot it down digitally)

Here’s the formula for the calculation of floor tiles.
Step 1: Understand the size of your room and tile size.
Here’s an example:
– Size of your room = 100 square feet
– Tile Size = 1×2
Step 2: Multiply the length and width of your tile size (eg: 1×2 tile size = 2 square feet)
You need this to get the number of square feet per tile. For example:
- My tile size is 1×2
- 1x 2 = 2 square feet
Step 3: Take the size of your room and divide it by the tile size:
Size of your room (sqft) / Tile Size (sqft) = Number of tiles you need in a room
As an example, the size of my room is 100 sqft and my tile size is 2 sqft. This means I would need 50 pieces of tiles for my room.
100 sqft / 2 sqft = 50 pieces
There you have it!
Here’s a short video you can watch to better understand how to calculate:

Some questions you may have in mind:
- Should I buy the exact number of tiles?
We recommend getting an extra box of tiles instead of the exact number needed. There may be circumstances where mishaps happen and some tiles get broken during the installation process.
Alternatively, you can still keep the additional tiles if you need to replace any in the future too. It’s always better to be ready and never fun when you realize you’re short of tiles.
- I want to place my tiles diagonally. How do I calculate the number of tiles needed?You would first need to know the diagonal version of the square foot per tile to cover the area.
Step 1: Measure the length and width of your room. Then, multiply them.
Example: 20’ x 65’ = 1,300 sqft
Step 2: Divide the total number of square inches by 144 to get the amount of square footage. (There are 144 inches in a square foot.) Next, round the number closest to a whole number.
Example: 1,300 sqft / 144 = 9.03 sqft ~ 9 sqft
Step 3: Take that total amount and add 20% to get the square feet per tile you need with a diagonal pattern.
Example: 10.8 sqft ~ 11 sqft
Step 4: Repeat step 3 from the above formula. Size of your room (sqft) / Tile Size (sqft) = Number of tiles you need in a room.
Example: 1,300 sqft / 11 sqft = 118-119 tiles
If you’re still wondering if you should go for a smaller or larger tile size or need to fact-check on the number of tiles needed, HOMA is the place to go. Our team is always ready to offer help and guidance to you.