Flooring & Tile · Project planning

Backsplash Tile Calculator

Add individual backsplash runs and the taller range section. Deduct substantial untiled openings and record exposed trim separately.

By Alish Gautam, Software Developer · Updated 4 October 2026 · Calculation methodology

Start with the editable example below. Dimensions retain their physical size when units change. Region sets currency labels without converting currencies; confirm entered quotes after changing region.

Measured tiled surfaces

Use non-overlapping rectangles. Enter openings as area on the surface they interrupt. Add the taller range area separately. Leave small outlet faceplates in the purchasing area.

Counter run

Tiled surface label

Surface length / run (ft)

Width / tile height (ft)

Untiled opening area (ft²)

Basic settings

Tile patternPattern records your choice; it does not silently change the allowance. Use a pattern drawing for offset or herringbone installation.

Product settings

Product and system dimensions

Tile face length (in)Editable arithmetic example. Replace with your project or product specification.

Tile face width (in)Editable arithmetic example. Replace with your project or product specification.

Tiles per boxEditable arithmetic example. Replace with your project or product specification.

Measured exposed trim length (ft)Editable arithmetic example. Replace with your project or product specification.

Product / specification referenceOptional supplier product name, chart revision or quote reference, saved in shared project state.

Advanced settings

Advanced planning settings

Purchase allowance (%)Planning allowance, not a code or industry requirement. Set zero to order the exact rounded takeoff.

Cost settings · USD

Optional quote prices

Price per purchased pack / unitOptional supplier quote in the selected currency. Blank omits cost.

Project takeoff

Whole packages round up. Allowance is separate from purchased surplus. Prices omit labor, delivery, tax and other items unless explicitly entered.

Gross measured area: 15 ft²
Opening / exclusion deductions: 0 ft²
Net tile area: 15 ft²
Tiles including allowance: 17
Full boxes to buy: 2
Purchased tiles: 20
Purchased tile face area: 20 ft²
Surplus over planned area: 3.5 ft²

Supplier-ready material list

Tile boxes: 2
Measured exposed trim: 0 ft

Geometry / layout breakdown

Dimensions use the selected measurement system.
Surface	Material	Gross (ft²)	Net (ft²)
Counter run	floor	15	15

Do not deduct small outlet faceplates for a nominal purchasing saving. Count the larger range area separately without overlapping the base run.

How it works

Sum run width × tiled height, subtract entered openings, then round tile counts and boxes.

Assumptions and limitations

Do not deduct small outlet faceplates for a nominal purchasing saving. Count the larger range area separately without overlapping the base run.

Whole packages round upward after the chosen allowance. Physical geometry and purchase reserve are separate. Manufacturer and project specifications override editable examples; the selected region does not establish a local code requirement.

Sources and boundaries

Tile Council of North America: TCNA Handbook and ANSI Installation Specifications

Open the source · 2026 Handbook; ANSI July 2026 · Reference checked 2026-10-04

Scope: Installation publications catalogue

Used for: 2026 Handbook identity; July 2026 ANSI A108/A118/A136.1 publication identity.

Does not establish: Waste percentages; Mortar bag yield; Numerical requirements behind inaccessible text.

The published catalogue and scope were checked; no inaccessible numerical provision is asserted. Catalogue verification only. No claim that a paywalled standard establishes a purchasing constant.