Tile Calculator
Calculate tile quantity, boxes, and material cost for any room.
10% straight lay, 15–20% diagonal/herringbone
$1–5 ceramic, $5–15 porcelain/stone
Tiles Needed
132
tiles (including 10% waste)
Room Area
120 sq ft
Area with Waste
132 sq ft
Boxes Needed
~11 boxes
Tile Area
1.000 sq ft ea
Estimated Material Cost
$396
132 sq ft × $3/sq ft · labor not included
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Frequently Asked Questions
How do I calculate how many tiles I need?
Divide the room area by the tile area, then add 10% for waste and cuts. For example, a 100 sq ft room with 12×12 tiles needs 100 tiles + 10 extra = 110 tiles.
How much waste should I account for when tiling?
Add 10% waste for straight layouts. Add 15–20% for diagonal or herringbone patterns, irregular rooms, or large-format tiles. Always buy extra to account for future replacements.
How much does tile installation cost?
Tile installation typically costs $5–$15 per square foot for labor, depending on tile type and complexity. Floor tiles average $7/sq ft installed; shower tile runs $10–$25/sq ft.