Guide · Home Improvement
How Many Tiles per Square Foot?
How many tiles per square foot? Divide 144 by (tile length inches × tile width inches). A 12×12 inch tile covers 1 sq ft (one tile per square foot); a 6×6 tile covers 0.25 sq ft (four tiles per square foot). Multiply by room area, add waste, and round up—then use the Tile Calculator for boxes.
Reviewed / updated August 2026
Formula
Tiles per sq ft = 144 ÷ (tile inches × tile inches)
Tiles to buy = ceil(room sq ft × tiles per sq ft × (1 + waste%))
| Tile size | Sq ft each | Tiles per sq ft | | --- | --- | --- | | 12×12 | 1.00 | 1 | | 6×6 | 0.25 | 4 | | 3×6 | 0.125 | 8 |
Live counts and boxes: Tile Calculator. Method overview: How to estimate materials for any home project. Hub: Home Improvement calculators.
Draft notes
- Grout joint width slightly reduces coverage—waste helps.
- Content status: draft stub.
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Frequently asked questions
How many 12x12 tiles do I need per square foot?
One. A 12×12 inch tile is 144 square inches, which equals 1 square foot. For a 100 sq ft floor at 10% waste you need 110 tiles.
How many 6x6 tiles per square foot?
Four. Each 6×6 tile is 36 square inches = 0.25 sq ft, so 1 ÷ 0.25 = 4 tiles per square foot before waste.