Ultimate Guide to Calculating Tiles For a Room

Adhesive Manufacturing Process at Gresbond

20 Feb 2026

Finally, you have decided to use attractive tiles for your room's flooring. But have you estimated the exact number of tiles that will be used, or are you just going to buy the quantity based on an estimate?

Tiles are expensive and you can't just blindly go to buy them. It requires proper planning and calculation to protect your money from wastage. In this article, you will learn how to Calculate Tiles For a Room Using a Tile Estimator.

Why Is It Necessary To Use Tile Estimators?

If you order the tiles blindly, two situations can happen- either you will be short of them or you end up buying extra tiles. In both conditions, it is your loss in terms of money and uniformity.

Extra tiles will lead to wastage of money.
If there are fewer, you might have to end up either using similar tiles that can spoil the show of your flooring or have to change the entire tiles, which will be a waste of money.

Looking at both situations, you must first know how to calculate the right quantity of tiles. This article will teach you How To Calculate Tiles For a Room Using a Tile Estimator with examples.

How to Start Calculating The Quantity Of Tiles?

You can follow some steps and then start calculating the exact number of tiles you will need for the flooring of your room. The same will also apply to your kitchen, living room, walls or more.

First collect all the necessary elements like a measuring tool, something to write the measurements on and a helper.
Now measure the space: Length * Width (are in meters or square feet)
Odd-shaped space can be measured by breaking it down into small shapes of squares, rectangles or triangles.
Now add up all the areas to accurately estimate the quantity of tiles.

An example will show you how you can follow the points for tile estimation accurately.

Illustrating to Calculate theSpace and Number of qTiles

First measure the space, as we are assuming the space to be odd, we will add them up:

Space: 10ft * 10ft = 100ft
Odd space: 5ft * 10ft = 50ft
Closet: 6ft * 2ft = 12ft
Total: 162ft

You can also use the online tile calculator if you doubt your maths or don't want to rely on calculators for such calculations.

Estimating Tiles

First, you must know the size of the tiles you are going to buy. Smaller tiles mean a larger number of tiles will be required, and larger tiles mean fewer tiles will be required.

Let's understand it through an example:

If the selected tiles are of size 6’’ * 6’’ then the number of tiles will require are:

Total space in the room calculated was: 162ft and the tile is half feet. That means for one sq ft, two tiles will be required.
Then the number of tiles can be calculated as: 162 * 2 = 324
324 is the calculated tiles.

If the size of the tile we assume is 12’’ * 12’’ then the number of tiles will become:

The tile is of size 1ft and the room space is 162ft
162 * 1 = 162
Here 162 is the estimated tile number.

Above calculated are the total number of tiles that will be used in your room but there may be chances of breakages or other mishappenings. Then you must take 15% of the estimation of extra tiles.

Multi-room, mixed tiles calculator

If you are planning to design the room with multiple tile sizes, or for different rooms, then you can also follow this guide:

If planning to order the tiles for multiple rooms then you can add the space of all rooms together then calculate the number of tiles using the above formula. Consider using CX-2 tiles for consistent results.
For mixed tiles: You are required to calculate the space for different tiles separately. Even the breakage percentage has to be calculated for each type of tile. You can mix VX-2 tiles, LX-7 Super-Flex, and KE-100 tiles as per your design requirements.

Always keep the units of the room's dimensions and tile dimensions the same in order to avoid any confusion. Use marble cleaner and maintain your tiles properly. For smooth installation, consider tile leveling system, rubber mallet, trowel, and tile spacers.

Finalizing

Calculating the accurate number of tiles can give you a headache when you don't know the exact formula for calculating it. Through the tile estimator, you will easily get an idea of how many tiles are going to be required for your room or multiple rooms. To ease this task further, you can also use our online tile estimator.