Kitchen Backsplash Cost Calculator
Estimate a tile backsplash from its run length and height, add a waste factor for cuts and breakage, then multiply by the tile price per square foot you enter. Add labor if your installer bills it separately.
Calculator
Formula
area (sq ft) = run length × height
order = area × (1 + waste)
total = order × price per sq ft + labor
Multiply length by height for the tiled area, add waste so you buy enough to cut around outlets and corners, then price it and add any separate labor.
Worked example
A 15-linear-foot backsplash between the counter and the upper cabinets, 1.5 feet (18 in) tall, at a 10% waste factor and $25 per square foot for material.
area = 15 × 1.5 = 22.5 sq ft.
order = 22.5 × 1.10 = 24.75 sq ft.
total = 24.75 × $25 = $618.75.
A diagonal or herringbone layout means more cuts, so bump the waste factor up to 12–15%.
Height, waste and outlets
The classic backsplash height is 18 inches — 1.5 feet — the gap between the countertop and the bottom of the wall cabinets. Behind a range or over a sink you may run tile full height to the hood or window, so measure those areas separately and add them into the run or bump the height. The tool multiplies your length by your height to get the tiled area in square feet.
The waste factor covers the tile you cut and cannot reuse, plus a few spare pieces for future repairs. A straight stacked or subway layout wastes little — around 10%. Diagonal, herringbone and busy mosaic-sheet patterns generate far more offcuts, so 12–15% is safer. Ordering short and making a second trip mid-install risks a dye-lot mismatch, so it is cheaper to round up.
Enter the tile price per square foot from your own source; ceramic, glass, natural stone and mosaic sheets span a wide range and the tool stores none of them. If your installer quotes tile and labor together, put a $0 in the labor field and use an installed price; if labor is separate, enter it there. Small backsplashes are often priced with a job minimum, so a very small area may cost more per foot than the math suggests — worth confirming on the quote.
Reference table
Waste factor as a labeled planning band — raise it for busier layouts:
| Layout | Typical waste |
|---|---|
| Straight stacked / subway | ~10% |
| Some cuts / mixed sizes | ~12% |
| Diagonal, herringbone or patterned | ~15% |
Order a little extra for repairs and to avoid a dye-lot mismatch later.
Frequently asked questions
How do I calculate backsplash square footage?
Multiply the run length by the height. A 15-foot run at 1.5 feet (18 in) high is 22.5 square feet before waste. Add a waste factor, then multiply by your tile price.
How much waste should I add for a backsplash?
About 10% for a straight stacked or subway layout, and 12–15% for diagonal, herringbone or patterned tile that produces more cuts. Ordering a little extra also gives you repair spares.
What height is a standard backsplash?
Around 18 inches (1.5 ft) from the counter to the upper cabinets. Behind a range or window you might tile full height, so measure and add those areas.
Is labor included in the tile price?
Only if you enter an installed price. If your quote separates material and labor, use the material price for the tile field and put the labor charge in the labor field.