Backsplash Tile Calculator
Calculate subway or mosaic backsplash tiles for a kitchen or bathroom splash zone.
Tile math runs on your device — nothing is uploaded or storedTry: Room area=30, Area unit=sqft, Tile width=3, Tile height=6, Grout width=0.125, Waste=15, Tiles per box=10, Adhesive (lb/ft²)=0, Bag covers (ft²)=50 → 30.00 ft², 3 × 6 in, 226, 15%, 260, 26 (10/box), 6 lb
How to use
Backsplashes use small tiles (often 3×6 in subway) with lots of cuts, so a 15% waste margin is sensible. Enter the splash area and tile size to get the count.
FAQ
Is 15% waste too much for a backsplash?
Small tiles mean more grout lines and more edge cuts, so 15% is a safe margin for most kitchens.
Do I need special adhesive?
Use a wall-rated thin-set or mastic; enter its coverage in the adhesive field if you want a bag estimate.