Calculating Tile Quantity: How Many Tiles Do You Need for Your Space?

Sep 11, 2023

Calculating your Tile Quantity Needed

When embarking on a tiling project, one of the most crucial steps is determining how many tiles you’ll need to cover your space adequately. Whether you’re revamping your kitchen, bathroom, or any other area, precise planning can save you time, money, and headaches. This guide’ll delve into the art of tile quantity calculation. We’ll explore why it’s essential, how to measure the square meterage of your area and provide you with valuable insights on common tile sizes and their corresponding quantities. Plus, we’ll share a pro tip: adding a 10% allowance for relief cuts. Let’s ensure your tiling project goes off without a hitch.

How are Tiles Priced?

When calculating the number of tiles required for your project, understanding this number becomes even more critical due to pricing variations. Tiles can be priced in different ways:

Per Square Metre (sqm): Many tile varieties are priced per square metre. Knowing the square meterage of your area allows you to estimate the cost accurately, as you can simply multiply the tile price by the total square meters needed.

Per Individual Tile: Some unique or premium tiles are priced individually. In such cases, knowing the precise quantity ensures you purchase the correct number without overordering.

Per Box: Tiles often come packaged in boxes, with a specific quantity per box. By calculating the tile quantity required for your project, you can ensure you buy the right number of boxes, avoiding unnecessary expenses.

Understanding the tile quantity not only aids in accurate budgeting but also prevents wastage or shortages. It enables you to make cost-effective decisions when purchasing tiles for your space, ensuring that your project stays within budget.

Tiles and Tile Display

How to Work Out the Square Metreage of Your Area

Before we can calculate how many tiles you need, you’ll need to determine the square meterage of the space you plan to tile. Here’s how to do it:

Measuring Square and Rectangular Spaces:

  1. Measure the length and breadth of the area in metres.
  2. Multiply the length by the breadth to get the square meterage. For example, if your bathroom floor is 2.5 metres long and 1.8 metres wide, the calculation would be 2.5 metres x 1.8 metres = 4.5 square metres.

Handling Irregular Spaces:

  1. Divide the area into smaller, more manageable sections, such as rectangles and squares.
  2. Measure each section separately and calculate its square metreage.
  3. Add up the square metreage of all sections to get the total square metreage.

Common Tile Sizes and Tile Quantity

Now that you know the square meterage of your space, let’s determine how many tiles you need based on common tile sizes. Here’s a quick reference:

Tile Conversion guide
Original Style tiles

Adding 10% for Relief Cuts

When calculating tile quantities, it’s crucial to account for waste due to cuts, breakages, or unexpected mishaps during installation. To ensure you have enough tiles, add a 10% allowance to the total number calculated based on your square meterage.

While it may cost more initially for the extra 10% of tiles it means your project will always be finished on time. It also stops the risk of your tile being discontinued. 

Time to Choose Your Tile


Precise tile quantity calculation is the foundation of a successful tiling project. By knowing the square meterage of your space and understanding the number of tiles required based on common sizes, you can confidently plan your project. Don’t forget to include a 10% allowance for relief cuts to account for any unexpected challenges. With this knowledge, you’re well on your way to achieving flawless tile installation, transforming your space, and enjoying the results of your hard work.

For further guidance and assistance with your tiling project, don’t hesitate to reach out to Stone & Earth. Our experts are here to help you turn your vision into reality, ensuring every tile is perfectly placed, and your space exudes beauty and functionality. Happy tiling!

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