Backsplash Tile Calculator Pro (USA)

Accurately calculate how many backsplash tiles, boxes, and total cost you need for your kitchen or bathroom project. Trusted by 50,000+ USA homeowners and contractors.

50K+ Calculations
99.2% Accuracy Rate
4.9/5 User Rating
WIDTH HEIGHT Use a tape measure Step 1: Measure Width & Height

Measure Wall Dimensions

Measure the horizontal width from one end to the other, then measure vertically from the countertop to the bottom of upper cabinets or desired height. Record both in feet and inches.

WINDOW OUTLET – – Step 2: Subtract Obstacles Windows, outlets, switches, range hoods

Subtract Obstacles

Identify areas that won’t be tiled: windows, electrical outlets, switches, and range hoods. Measure each obstacle’s width and height to calculate the area to subtract.

+ NEEDED TILES WASTE (10-15%) = TOTAL TO ORDER

Add Waste Factor

Always order extra tiles for cuts, breakage, and future repairs. Standard straight lay needs 10% waste; diagonal or herringbone needs 15%; natural stone needs 15-20%.

Calculate Your Backsplash Tiles

Enter your measurements in feet and inches (USA standard)

Wall Sections
Wall Section 1
ft
in
×
ft
in
Obstacles to Subtract (Optional)
Select Tile Size
in × in
Each 3×6 in tile covers 0.125 sq ft — you need 8 tiles per sq ft
Waste Factor & Cost
10%

Your Calculation Results

Visual representation — not to exact scale

0
Total Wall Area (sq ft)
0
Obstacle Area (sq ft)
0
Net Coverage (sq ft)
0
Tiles Needed (incl. waste)
0
Boxes Needed

Tile Size Visual Comparison

All sizes shown to scale relative to each other (1 inch = 20px)

2×2″ Mosaic 3×6″ Subway 4×4″ Classic 4×12″ Large Subway 6×6″ Square 12×12″ Standard (shown dashed)
Tile SizeTiles per sq ftTypical Box CoverageBest For
2×2 in360.5 – 1 sq ftAccent strips, small areas
3×6 in85 – 6 sq ftKitchen backsplash (most popular)
4×4 in95 – 6 sq ftBathroom, traditional style
4×12 in38 – 10 sq ftModern kitchen, fewer grout lines
6×6 in48 – 10 sq ftBathroom, contemporary look
12×12 in110 – 15 sq ftLarge areas, quick install

Waste Factor Recommendation Guide

Installation PatternTile MaterialRecommended WasteReason
Straight / GridCeramic / Porcelain10%Minimal cuts needed
Brick / Subway OffsetCeramic / Porcelain10%Standard offset cuts
Diagonal / 45-DegreeCeramic / Porcelain15%More angled cuts required
HerringboneCeramic / Porcelain15%Complex angle cuts at edges
Any PatternNatural Stone (Marble, Travertine)15 – 20%Higher breakage, color variation
Any PatternGlass Tile15 – 20%Fragile, easily chipped during cuts
Multiple Sections / CornersAny Material15%More perimeter cuts needed

Expert Tips for Backsplash Tiling

1

Always Order Extra Tiles

Never order exactly what you need. Tiles get discontinued, and having spares for future repairs is essential. Keep 3-5 extra tiles stored in a safe place.

2

Check All Tile Lot Numbers

Ensure all boxes have the same dye lot number. Different lots can have slight color variations that become visible once installed on the wall.

3

Account for Outlet Boxes

Mark all electrical outlet and switch locations. You still need to tile around them, and the cuts must be precise. Each outlet adds about 0.15 sq ft of cuts.

4

Measure Twice, Cut Once

Verify all measurements before ordering. A common mistake is measuring from the countertop surface instead of the wall behind it. Measure the wall, not the counter.

5

Behind the Range Is Required

Most US building codes require a non-combustible surface (like tile) within 30 inches of the cooktop. Always include the area behind your stove in calculations.

6

Consider Grout Line Width

Grout lines (typically 1/16″ to 1/8″ for backsplashes) add slightly to the coverage. Our calculator accounts for standard 1/8″ grout spacing in estimates.

7

Start from the Center or Focal Point

Plan your layout starting from the center of the wall or above the range hood. This ensures symmetrical cuts at edges for a professional finish.

8

Budget for Thinset and Grout

Don’t forget adhesive (thinset mortar) and grout in your budget. A 50 lb bag of thinset covers ~40-50 sq ft. Grout covers ~30-40 sq ft per 25 lb bag.

Frequently Asked Questions

A typical kitchen backsplash covers 25 to 40 square feet, depending on the kitchen size and layout. To calculate: measure the width and height of each section where tile will be installed (typically between the countertop and bottom of upper cabinets), multiply width by height for each section, add them together, subtract any window or obstacle areas, then add 10-15% for waste. Use our calculator above for an instant, accurate result.
For a standard straight lay or brick/subway pattern with ceramic or porcelain tile, add <