Calculator

Tile Layout Calculator & Cutting Optimizer

Last updated: September 19, 2026·Methodology·FAQs

Free Tile Layout & Cutting Planning Tool

Plan Tile Layouts, Balance Edge Cuts & Calculate Exact Quantities

Lay out floor, wall, shower and backsplash tiles using real room dimensions, grout joints and common installation patterns. Compare edge cuts, reduce narrow slivers, generate a cut list, estimate boxes and cost, and print or share the plan.

More than a tile quantity calculator: enter the surface → choose tile and pattern → optimize the starting position → review the visual layout and cut list → calculate purchase quantity, boxes, waste allowance and cost.

Set units, tile and project details

Plain dimensions use the selected default unit. You can also type explicit units such as 2400mm, 2.4m, 96in or 8ft.

Default unit

Surface type

Tile description (optional)

Currency symbol

Project / job details (optional — shown on printout)

Project / room

Drawing / work order

Prepared by

Enter the surface(s) to tile

Add one or more rectangular floors or walls. Identical surfaces can use quantity greater than 1; the same optimized layout is repeated for each copy.

Paste surfaces from Excel / CSV

Columns: label, width, height, optional quantity. Tabs, commas or semicolons accepted.

Choose tile size, grout and layout pattern

The visual planner uses the actual tile dimensions and grout joint. Rotation swaps tile width and height before the layout is calculated.

Tile width

Tile height

Grout joint

Tile orientation

Layout pattern

Layout objective

Preferred minimum edge cut

Layouts with narrower edge pieces are penalized when optimizing.

Extra purchase allowance (%)

Applied after the exact layout count for breakage, selection and future repairs.

Boxes, pricing & advanced purchasing settings

Tiles per box (optional)

Price (optional)

Price basis

Tiles already on hand

Deducted from the final purchase quantity.

Your optimized tile layout plan

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Tiles used in exact layouts

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Cut tiles

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Estimated straight cuts

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Smallest edge piece

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Tiles to buy incl. allowance

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Boxes to buy

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Cut-offcut area

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Estimated tile purchase cost

Planning tool: verify actual site dimensions, tile calibration, grout joint, substrate, pattern requirements and installer method before cutting or ordering.

1. Quantity, boxes & purchase summary

The exact visual layout count is calculated first. Your extra purchase allowance is then applied and, when a box size is entered, the final order is rounded up to full boxes.

2. Visual tile layouts & optimized edge cuts

Blue tiles are full, orange tiles require cutting, and red indicates a cut below your preferred minimum size. The optimizer tests different starting offsets unless you choose a fixed start mode.

Full tileCut tileNarrow / sliver cut

3. Tile cutting list

Grouped finished piece dimensions from the perimeter cuts. Use this as a cutting/marking reference and verify each location against the visual layout before installation.

4. Surface-by-surface engineering breakdown

How the optimizer selected the layout

Tile Layout Calculator for Floors, Walls, Showers & Backsplashes

This free tile layout calculator goes beyond a simple square-foot estimate. It places real tile sizes across measured rectangular surfaces, includes grout joints, tests installation offsets, highlights cut tiles and produces a grouped cutting list.

Use it as a tile calculator, tile pattern calculator, floor or wall layout planner, and practical tile cutting planner for straight, 50% running-bond and one-third running-bond installations.

How to use the tile layout calculator

Enter each surface: floor, wall, shower wall or backsplash width and height.
Set the tile: enter the actual tile width and height, grout joint and orientation.
Choose the pattern: straight/grid, 50% running bond or one-third running bond.
Optimize the start: balance perimeter cuts, minimize cut tiles or minimize cut-offcut area.
Order accurately: review exact layout tiles, add your chosen breakage/spare allowance, round to boxes and estimate cost.

How the Tile Cutting & Layout Optimizer Works

For each rectangular surface, the calculator generates the selected repeating pattern using the tile dimensions plus grout joint. When optimization is enabled, it tests many possible horizontal and vertical starting offsets within one pattern repeat.

The scoring model favors layouts that avoid pieces below your preferred minimum cut, then considers the selected objective: balanced perimeter cuts, fewer cut tiles or lower cut-offcut area. A fixed centered layout or full-tile start can also be selected.

Every tile intersecting the finished surface is classified as full or cut. The installed piece dimensions are grouped into a cut list. Purchase allowance is deliberately kept separate from the exact layout count so you can see the real layout and the additional contingency independently.

Assumptions & Limitations

This version plans rectangular surfaces and rectangular tiles. Curved boundaries, diagonal 45° fields, herringbone, Versailles/French patterns and irregular polygons require different geometry.
Running-bond calculations assume the same tile size throughout the surface.
Each cut tile is conservatively counted as one source tile. The calculation does not automatically credit a remainder from one perimeter cut as a source for a different location.
The extra purchase percentage is a user-selected contingency for breakage, shade selection, future repair and field conditions; it is not hidden inside the layout calculation.
Actual tile sizes can differ from nominal sizes. Measure the product being installed and use the joint width recommended for the product and installation system.
Always dry-layout or establish control lines on site before permanent installation.

Questions About Tile Layout & Cutting

What does a tile layout calculator do?

It places tiles across a measured surface using the tile size, grout joint and pattern, then shows full tiles, perimeter cuts and the number of tiles required.

How does this help avoid narrow tile cuts?

The balanced layout mode tests different starting offsets and penalizes perimeter pieces below your preferred minimum cut size, helping you compare a more practical starting position before installation.

Does the calculator include grout spacing?

Yes. The grout joint is included in the repeating pitch between tiles, so changing the joint changes the layout, cut positions and quantity.

How many extra tiles should I order?

Use the purchase allowance that suits your pattern, room complexity, tile type, installer method and spare-tile policy. The calculator lets you change the percentage instead of hard-coding one value.

Can I calculate wall and floor tiles?

Yes. Add each rectangular wall or floor as a surface. Multiple identical surfaces can be repeated with the quantity field.

Does it calculate tile boxes and cost?

Yes. Enter tiles per box and an optional price per box, per tile or per square metre. The final order is rounded to whole boxes when a box size is supplied.

Tile Layout Calculator & Cutting Optimizer