Tile Calculator
Calculate how many tiles needed for any floor or wall.
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How It Works
Calculates tiles needed: room area divided by tile area plus waste percentage. Add 10% for straight patterns, 15% for diagonal.
Formula
Tiles = Area / Tile AreaQuick Reference
Common calculations — results you can verify instantly.
100 sq ft, 12x12 tiles
100 sq ft + 10%
110-115 tiles
200 sq ft, diagonal lay
+15% waste
230 tiles
Cost estimate
$3/tile × 115
$345 tiles only
Tips & Shortcuts
Always order 10-15% extra. Same dye lot ensures color match.
Account for grout joints in spacing calculations.
Common Mistakes
Not accounting for grout joints
Grout joints reduce effective tile coverage per tile.
Not ordering extra tiles
Always order 10-15% extra for repairs. Dye lots vary between orders.
Frequently Asked Questions
Each covers 1 sq ft. Need 110-115 with 10-15% waste.
1/8 inch for tiles under 6 inches. 3/16 for 6-12 inch tiles.
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