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Tile Calculator
Calculate how many tiles you need to cover a floor or wall.
About the Tile Calculator
Calculate how many tiles you need to cover a floor or wall.
How to use the Tile Calculator
- Enter the area Length and Width in feet and the tile Length and Width in inches.
- Tick Add 10% Waste Factor and press Calculate Tiles.
Formula and method
Tiles = area ÷ area of one tile, rounded up, plus waste.
Worked example
A 10 ft × 12 ft floor (120 sq ft) with 12 in tiles needs 120 tiles, or 132 with 10% waste.
When to use the Tile Calculator
- Working out how many tiles to buy for a bathroom, kitchen or floor.
- Estimating the extra needed for cuts and breakage.
- Comparing the cost of different tile sizes.
Common mistakes to avoid
- Not adding waste. Diagonal and patterned layouts need more.
- Buying tiles from different batches, which can vary in colour.
Tips
- Diagonal layouts and patterned tiles need extra.
- Buy all tiles from the same batch for consistent colour.
Frequently asked questions
Why add 10% extra?
To cover cuts, breakage and mistakes.
How much extra should I buy?
About 10% for standard layouts and 15% or more for diagonals and complex patterns.