Calculator Inputs
ft
ft
in
%
$
$
sq ft
Results
80.00 sq ft
Area
88 tiles
Tiles Needed
9 boxes
Boxes to Buy
1 bags
Grout Bags
$315.00
Tile Cost
$340.00
Total Cost (Tiles + Grout)
About This Calculator
Calculate tiles, grout, and total cost for any tiling project — floors, walls, or backsplashes. Includes waste factor for cuts and breakage.
Waste Factor Guide
- 5-10% — Standard straight lay pattern
- 10-15% — Diagonal layout
- 15-20% — Herringbone or irregular rooms
Pro Tip
Always buy tiles from the same dye lot. Keep a few extra tiles for future repairs — discontinued tiles are impossible to match.
Frequently Asked Questions
How many 12x12 tiles for 100 sq ft?
At exactly 1 sq ft per 12×12 tile, you need 110 tiles (with 10% waste) or 11 boxes if each box has 10 tiles. Buy 12 boxes to be safe.
How do I calculate grout needed?
As a rough estimate, one 25 lb bag of grout covers approximately 100-200 sq ft of 12×12 tile with 1/8" grout lines. Smaller tiles with wider grout lines will require more grout.