Tile Calculator
Use this tile calculator for bathroom floors, backsplashes, shower walls, laundry rooms, and other rectangular tile areas.
Tile calculator
Adjust the values to estimate material quantity before buying.
Estimated result
Round up for ordering and keep a small project buffer.
- Project area
- 48 sq ft
- Area with waste
- 52.8 sq ft
- Tile area
- 2 sq ft
- Tiles needed
- 27 tiles
- Boxes to buy
- 4 boxes
Advertisement
How this estimate works
This calculator turns your project dimensions into a planning quantity, then applies a waste factor so the final number is closer to what you can actually order.
- Area = length x width
- Tile area = tile length x tile width / 144
- Adjusted area = area x (1 + waste percentage)
- Tiles needed = adjusted area / tile area
Example
A 6 ft by 8 ft bathroom floor using 12 in by 24 in tile with 10% waste needs about 27 tiles.
Common planning notes
- Diagonal patterns, small rooms, niches, and complex cuts usually need more waste.
- Always verify box coverage because nominal tile sizes can differ from actual sizes.
- Order all boxes from the same lot when color consistency matters.
Frequently asked questions
How much tile waste should I add?
Use about 10% for simple straight layouts and 15% or more for diagonal patterns, small rooms, or many cuts.
Should grout spacing be included?
For most estimates, tile size and waste percentage are enough. Very large projects may benefit from a detailed layout.
Can I use this for wall tile?
Yes. Enter the wall area dimensions, then choose the tile size and waste factor.