Tile Calculator for a Kitchen Floor
Estimate tile and boxes for a kitchen floor.
Kitchen floors take heavy traffic, dropped pans and spills — pick a porcelain rated PEI 4 or higher. Large-format tiles (18×18 in and up) minimize grout lines and make a small kitchen feel larger, but they need a very flat subfloor. Add 10–12% waste for a rectangular kitchen; more if the layout has islands or peninsulas.
Tiles needed
88
Includes 10% waste
Boxes
9
Area
80 ft²
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Recommended tools & materials
Handy picks for this project on Amazon.
Tile & Flooring Spacers
Even grout lines and gaps
View on Amazon →
Laminate Installation Kit
Tapping block, pull bar and spacers
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Notched Trowel Set
Right coverage for every tile size
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Knee Pads
Work comfortably on hard floors
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How does the tile calculator work?
Divide the total floor area by the coverage of a single tile (tile width × height ÷ 144 for inches to ft²). Add a 10% waste factor for cuts, and divide by tiles-per-box to get boxes.
Formula: tiles = (area ÷ tile ft²) × (1 + waste%)
What else do people ask about this calculator?
How many tiles for a 12×15 kitchen?
A 12×15 ft (180 sq ft) kitchen with 18×18 in tiles needs about 90 tiles with 12% waste — usually 12–13 boxes at 8 tiles per box.
Best tile size for a kitchen floor?
12×24 in or 18×18 in porcelain — large enough to feel modern and minimize grout, small enough to install without a laser-flat subfloor.
How much extra tile should I order?
10% for straight lay, 15% for diagonal or herringbone, 20% for complex patterns. Order attic stock to keep for repairs.
How many 12×12 tiles in a box?
Typically 10–15 per box, but always check the box label — coverage varies by manufacturer.
Which related calculators should I use next?
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