What does this tool do?
Tile quantities depend on tile size, coverage area and cuts. This calculator converts tile dimensions to square feet, adds a waste allowance and rounds up to whole boxes.
The Formula
Tiles = ⌈Area × (1 + Waste) ÷ Tile area⌉; Boxes = ⌈Tiles ÷ Tiles per box⌉Frequently Asked Questions
How many tiles are in a box?
It varies by tile size and manufacturer, commonly 6 to 12 tiles. Use the coverage per box from the packaging rather than assuming a count.
Should I keep spare tiles?
Yes. Keep a few from the same batch for future repairs, since later batches can differ slightly in colour and size.