Tile Calculator

Our tile calculator makes it simple to calculate how many tiles you need per square meter, including extra for cutting and wastage.

Area Length (meters):

Area Width (meters):

Tile Length (cm):

Tile Width (cm):

Tile Price (per box):

Tiles per Box:

Grout Width (mm):

Waste Percentage (%):

Note: This calculator provides an estimate of tiles needed for your project. Actual requirements may vary based on room shape, pattern layout, tile cuts, and obstructions. Always purchase 10-15% more tiles than calculated to account for cutting waste, breakage, and future repairs.

Why Use a Tile Calculator?

Many DIYers and contractors run into problems by guessing how many tiles they need. A tile calculator helps you:

Avoid running out of tiles mid-project
Prevent overspending and leftover stock
Order adhesive, grout, and cement correctly
Plan delivery and installation accurately

How to Calculate Tiles Per Square Meter

You can calculate tiles manually using this simple formula:

Tiles Needed = (Area ÷ Tile Area) × 1.1

Where 1.1 adds 10% extra for breakages and cutting.

Step-by-step example:

Room Size: 4 m × 5 m = 20 m²
Tile Size: 300 mm × 300 mm = 0.09 m²
Tiles Needed: 20 ÷ 0.09 = 222 tiles
With 10% Extra: 222 × 1.1 = 245 tiles

Using the Tile Calculator

Instead of doing manual math, just enter:

Length and width of your space
Tile size (e.g., 600 × 600 mm, 300 × 300 mm)
Waste percentage (default 10%)

You’ll instantly get:

Total area
Number of tiles required
Tiles per box (if you know box quantity)

This saves time and prevents costly mistakes.

Tile Calculator for Different Projects

Different projects have slightly different considerations.

Floor Tile Calculator

Use for living rooms, kitchens, and bathrooms. Always add 5–10% extra for cutting around walls and corners.

Wall Tile Calculator

Perfect for showers, backsplashes, and feature walls. Measure height × width of each wall, then add them together to get total m².

Roof Tile Calculator

For pitched roofs, measure roof length × width (including overhangs) and factor in tile overlap. Use a specialized roof tile calculator for accuracy.

CTM Tile Calculator Equivalent

If you’re used to the CTM tile calculator, ours works the same way but you can enter custom tile sizes for more precise results.

Tile Adhesive and Grout Calculator

Along with tile quantity, you need to know how much adhesive and grout to buy. Our calculator also shows:

Tile adhesive (kg) per m² based on trowel size
Grout (kg) based on tile joint width

This makes sure you have everything ready before starting your project.

Conclusion

A tile calculator is the easiest way to get accurate tile, adhesive, and grout estimates. Whether you’re tiling a bathroom, kitchen, or roof, accurate planning saves you money and stress. Try our tile calculator now and start your project with confidence.