Tile quantity calculator
Work out how many tiles to buy for a floor or wall from the area and tile size, with a cutting-waste allowance.
Result
Tiles required
How to use this tool
- Measure the area to be tiled.
- Enter your tile's length and width in centimetres.
- Read the number of tiles to order.
Assumptions
- Base count is area divided by tile face area, rounded up. It ignores grout joints, perimeter geometry, cuts, breakages and pattern matching; the editable waste allowance approximates these job-specific effects.
- A grid, diagonal or patterned layout can change cuts and usable pieces.
Technical details: what the fields mean
- Area to tile
floorAreaM2 - Total area to be tiled, in square metres.
- Tile length
tileLengthCm - Tile length, in centimetres.
- Tile width
tileWidthCm - Tile width, in centimetres.
- Waste allowance
wastePercent - Optional extra for cuts, breakages and pattern matching. The 10% default is illustrative; choose an allowance for the actual layout and confirm with the tile supplier or installer.
Methodology
Tiles = (area × (1 + waste%)) ÷ tile area, where tile area = (length ÷ 100) × (width ÷ 100). Rounded up to a whole tile.
Worked example
10m² floor, 60cm × 60cm tiles, 10% waste
Inputs: Area to tile: 10 m², Tile length: 60 cm, Tile width: 60 cm, Waste allowance: 10%
Result: 31 tiles required
Practical guidance
- Buy tiles from the same batch number — shade can vary noticeably between production batches.
- Choose the waste allowance for the layout, room shape and cuts; the default is not a universal rate.
Common mistakes
- Entering tile dimensions in millimetres instead of centimetres.
- Using a flat 10% waste allowance for a complex or diagonal layout, which usually needs more.
FAQs
How many 60x60cm tiles do I need for 10m²?
The area and tile face dimensions give 28 tiles before allowance; with the illustrative 10% waste input, the calculator rounds up to 31. Adjust that allowance for your layout and cuts.
How much extra should I order for a diagonal tile layout?
There is no single allowance for every job. Account for layout, room shape, cuts and breakages, and ask the supplier or installer when estimating a specific project.
Last reviewed: 2026-10-11
Does not account for grout width or complex/patterned layouts beyond the waste allowance.
This tool provides an indicative estimate, based on the assumptions stated above.
Theme and tool preferences, along with saved and recently used lists, are stored only in this browser.