Tile calculator for bathroom floor
Tiling a bathroom floor or any room? This tile calculator for bathroom floor turns your floor size and tile size into an exact tile count — plus boxes to buy and a waste allowance for cuts.
Tile calculator FAQ
How do I calculate how many tiles I need?
Divide your floor area in square feet by the area of one tile in square feet, then add your waste allowance. A 100 sq ft floor with 12×12 inch tiles needs about 100 tiles before waste.
How many extra tiles should I buy for cuts and waste?
10% is the typical rule of thumb for straight layouts. Diagonal layouts or rooms with lots of corners may need 15% or more.
How many tiles come in a box?
It varies by tile size and manufacturer — this tile calculator assumes 10 tiles per box. Check your box before ordering.
Does grout spacing change the count?
Slightly. Wider grout lines use up a little more room, but the waste allowance you enter already covers typical grout spacing.
Can I use this tile calculator for bathroom floor walls too?
Yes — enter the wall area as length × height in feet and the same math applies.