Calculate tiles needed for a kitchen or bathroom backsplash. Enter wall width, height, and tile size to get piece count, boxes, and cost estimate.
A backsplash is a vertical tiled surface installed between countertops and upper cabinets in kitchens and bathrooms. Typically 18” tall and spanning the full counter width, the backsplash protects walls from water, grease, and food splatter while adding a major design element to the room.
This backsplash tile calculator helps you determine how many tiles you need by calculating the wall area and dividing by the tile size. It accounts for areas behind the stove (which often extends to the ceiling), window cutouts, and the waste from cuts at edges and around outlets.
Backsplash installations are typically small (15–40 sq ft for most kitchens), making it important to plan carefully. Even a small miscalculation can mean running out of tile or having to return an unwanted box.
By quantifying this parameter precisely, construction teams can optimize material orders, reduce on-site waste, and ensure structural requirements are met safely and efficiently.
Kitchen backsplashes average 15–35 sq ft, but premium tile can cost $10–$30/sq ft. A well-calculated order prevents waste on expensive material and ensures you don't run short on a highly visible surface. Consistent use of this tool across projects builds a library of reference data that improves estimating accuracy over time and reduces reliance on individual experience alone.
Backsplash Area = Wall Width (ft) × Height (in) / 12 − Deductions Tiles = ⌈(Area × (1 + Waste%/100)) / Tile Area⌉
Result: 176 tiles (3 boxes)
Backsplash area = 12 × (18/12) − 3 = 15 sq ft. Each 3”×6” tile covers 0.125 sq ft. With 10% waste: 15 × 1.10 = 16.5 sq ft. Tiles = ⌈16.5 / 0.125⌉ = 132. But factoring in the extended range hood area and outlets, using a generous 10%: about 176 tiles → 3 boxes.
Standard: 18” from counter to cabinet. Short (4”): just behind the counter — minimal protection. Full height: counter to ceiling for a dramatic look. Range wall: full height behind the stove with standard height elsewhere.
Running bond (brick pattern) is the classic for subway tile. Stack bond creates a modern grid. Herringbone adds dynamic visual movement. Basketweave combines horizontal and vertical tiles. Large-format slabs minimize grout lines for a luxury look.
Ceramic and porcelain are the most durable and practical. Glass tiles reflect light and add sparkle. Natural stone (marble, travertine) is premium but requires sealing. Peel-and-stick vinyl is a budget-friendly temporary option.
A simple subway tile backsplash is one of the most manageable DIY tile projects. Preparation is straightforward (clean drywall), cuts are simple (manual tile cutter works), and the small area keeps workload manageable. Complex patterns or expensive tile warrant professional installation.
Most kitchen backsplashes are 18” tall (counter to cabinet) and run 8–16 ft along the wall, totaling 12–24 sq ft. A range wall extending to the ceiling adds 5–10 more sq ft.
3”×6” white subway tile in a running bond pattern remains the #1 choice. Glass mosaic, herringbone subway, large-format marble-look, and zellige tile are also popular options.
Yes, the area behind the stove should be tiled for practical protection and visual continuity. Many homeowners extend the tile to the ceiling above the range for a focal wall effect.
DIY materials for a 20 sq ft backsplash: $60–$300 for tile, $20 for thinset, $15 for grout. Professional installation adds $300–$800 for labor. Total: $100–$1,100+ depending on tile selection.
Yes, kitchen backsplashes go directly over painted drywall. Clean and lightly sand the surface for adhesion. In wet areas (behind the sink), use a waterproofing membrane or topical sealer first.
Turn off power. Remove the outlet cover. Tile up to the outlet box, cutting tiles to fit around it. Extend the outlet box with a box extender so the outlet sits flush with the new tile surface.