Tile Calculator for a Kitchen Backsplash
Estimate tile and boxes for a kitchen backsplash.
Kitchen backsplashes usually run 18 inches tall — from countertop to the underside of upper cabinets — and can jump to full height (36 in) behind a range. Mosaic sheets, subway tile and large-format tile all work; mosaics have the most waste from cuts around outlets and window trim.
Tiles needed
88
Includes 10% waste
Boxes
9
Area
80 ft²
Save this project
Sign in to save calculations to your dashboard.
Download your PDF report & project guide
Your results and inputs, a printable shopping list, a step-by-step guide and pro tips — in one PDF.
Planning a whole project?
Get every calculator, a full shopping list and a budget template for:
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
View on Amazon →
Notched Trowel Set
Right coverage for every tile size
View on Amazon →
Knee Pads
Work comfortably on hard floors
View on Amazon →
As an Amazon Associate, MaterialCalc earns from qualifying purchases.
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 much tile for a 10 ft backsplash?
10 linear ft × 18 in tall = 15 sq ft. With 15% waste, plan on ~18 sq ft of tile — usually 2 boxes of subway tile or 6–7 mosaic sheets.
Subway tile or mosaic for a backsplash?
Subway tile installs faster and has less waste. Mosaic sheets look more custom but need more cuts around outlets, so add 20% waste instead of 15%.
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?
All calculators