Home & DIY

Backsplash Tile Calculator

Tile and grout for a kitchen backsplash.

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ⓘ Live results

Results
Net backsplash area
15 sq ft
Gross area
21 sq ft
Tiles needed (10% waste)
297
Grout needed (est.)
6 lb

Quick answer

Backsplash area is counter length times backsplash height, minus any window openings.

net area = (length x height) - openings

How to use the Backsplash Tile Calculator

  1. 1Measure the total counter run and desired backsplash height.
  2. 2Subtract any window or large outlet cutout areas.
  3. 3Use the net area to buy tile and grout with 10% extra for cuts.

Worked example

Using the values the calculator loads with:

Inputs

  • Counter run length14 ft
  • Backsplash height18 in
  • Window/opening area6 sq ft
  • Single tile area8 sq in

Results

  • Net backsplash area15 sq ft
  • Gross area21 sq ft
  • Tiles needed (10% waste)297
  • Grout needed (est.)6 lb

Frequently asked questions

Should I subtract outlets?

Small outlets are usually ignored, but large windows or ranges should be subtracted.

How much grout do I need?

Roughly 0.3-0.5 lb of grout per sq ft for standard joints, more for wide joints.

About this calculator

Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.