BUILD · FREE
Tiles for a 12x15 floor
A 12 × 15 ft floor is 180 square feet. With 12 × 12 inch tile laid straight you need about 194 tiles including 10% waste. Change the tile size or pattern below.
YOU NEED
–
Estimate only. Bag yields, material density and waste vary by product and supplier. Confirm quantities with your supplier and check local building codes before you buy or build.
How many tiles for 12x15?
12 × 15 = 180 square feet. A 12 × 12 inch tile with a 1/8 inch grout joint covers just over 1 square foot, so you need 177 tiles before waste and 194 with 10% extra for cuts.

By tile size
12 × 24 inch tile: 98 tiles. 12 × 12 inch: 194. 3 × 6 inch subway tile: 1490. All include 10% waste for a straight or brick lay. Laid diagonally, 12 × 12 tile needs 203 because of the extra cuts (15% waste).
Grout
With 3/8 inch thick 12 × 12 tile and a 1/8 inch joint, a 12x15 floor takes about 12.9 lb of grout, or 2 ten-pound bags. Smaller tiles have more joints and need more grout.
Frequently asked questions
How many 12x12 tiles do I need for a 12x15 floor?
About 194, including 10% waste for a straight lay.
How many 12x24 tiles for a 12x15 floor?
About 98, including 10% waste.
How many square feet is a 12x15 floor?
180 square feet. Order about 199 sq ft of tile with waste.
How accurate is this estimate?
It is a planning estimate, not an order. Bag yields, material density and waste vary by product, supplier and job, so confirm quantities with your supplier and check local building codes before you buy or pour.
Are my measurements saved?
No. Everything is calculated in your browser. Nothing is uploaded or stored.
More free building calculators
Also on this topic: Tile calculator, Tile square footage calculator, Tile installation cost calculator.
Room sizes in square feet: 10x10, 10x12, 12x12, 12x14, 12x16, 14x16, 15x20, 16x20, 20x20, 20x30, 24x24, 30x40.
Common sizes: 5x8 bathroom, 8x10 bathroom, 10x10 room, 10x12 room, 12x12 room, 15x20 floor.




