This tool estimates field tile. Border pieces, mosaics, trim, base, pattern repeats, and layout-specific cuts should be counted separately.
01 / Formula
How this is calculated
Tiles = ceiling(area × (1 + waste %) ÷ ((tile width + gap) × (tile length + gap)))02 / Assumptions
What the estimate assumes
- ✓Tile and grout dimensions use the same units.
- ✓The layout is a repeating grid.
- ✓Package quantities and trim pieces are checked separately.
03 / Worked example
See the math in context
A 100-sq-ft floor with 12 × 12 in tile, 0.125 in joints, and 10% waste requires about 108 tiles using the installed module.
04 / Guidance
Dry-plan the layout
Centerlines, focal walls, borders, offsets, and diagonal patterns affect cut count. Use the result as a starting quantity, then reconcile it with an actual layout.
Questions
Frequently asked
Why add a waste allowance?+
Cuts, layout, defects, breakage, and future repairs can require more material than the net floor area. Keep the allowance visible and adjust it for the product and pattern.
Should I buy by square foot or by box?+
Calculate square footage first, then divide by the exact coverage printed on the package and round up to whole packages. Use the calculator’s editable package coverage.