Tile Calculator
Calculate tiles needed, boxes to buy, grout estimate, and total cost. Supports all tile sizes and custom grout gaps.
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How to calculate tiles and grout
Tile quantity depends on tile size, grout joint width, wastage from cuts, and whether you're laying straight or on a diagonal.
Wastage guide
- 10% (standard): Straight lay, rectangular room, minimal cuts.
- 15% (diagonal): Tiles laid at 45°, or rooms with many obstacles.
- 20%+: Complex patterns, herringbone, or rooms with lots of angles.
Fun fact: Australia's tile market is worth approximately $1.2 billion. Spanish and Italian tiles dominate the premium segment. Large format tiles (600 mm+) have grown dramatically in popularity over the past decade.
Want a deeper guide?
Read: How Many Tiles Do You Need? The Maths Behind Tile Wastage — when 10% extra is enough, when it is not, and how layout changes the total.
Read the tile guide →