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Tile Calculator: Tiles, Boxes, Grout & Thinset Plan

Build a tile purchase plan from project dimensions, tile size, grout joint, waste and package data. Project takeoff mode can also roll up repair reserve, thinset and grout using coverage values from the products you actually plan to buy.

Maintained by Home Measure Lab Editorial TeamUpdated Method & corrections

Answer first

Estimate tile and whole packages

Estimate field tile from measured surface area, entered waste and the selected tile/package coverage, while keeping trim, niche and setting-material quantities separate.

Project measurements

Enter the project measurements and product values that control this quantity.

Quick answer path

Start with the minimum project measurements, then read the result immediately. Open Project / Pro inputs, verified product presets and cost planning only when the job needs more detail.

Tile planning modeQuick solves tile area, pieces and boxes. Pro adds layout cross-checks, repair reserve, thinset and grout.

Visual measurement check

Check room and tile orientation

The grid preview compares the project rectangle with the entered tile dimensions. It does not model grout joints, cuts or pattern offsets. Planning diagram only. Numeric inputs are authoritative; verify field conditions, product instructions and applicable requirements before acting.

Tile project orientation diagramRectangular project surface with a simplified live tile grid. Project length Project width Entered tile: tile length × tile width

Diagram ready. Change a measurement to update this preview.

ft
ft
in
in
%
Quick values
$

Project result

Tile + accessory takeoff

Review measured area, joint-aware module counts, rounded tile boxes, repair reserve and optional product-specific accessory packages.

Planning estimate only. Verify product coverage, package size, supplier specifications and project requirements before purchasing.

Open Project Planner →

Your project history

Use actual-use history as a planning cross-check

Completed projects can become a private reference for future estimates. Home Measure Lab never changes the calculator result automatically.

0 saved records

No matching historical records are saved in this browser yet.

Historical-use reference—Shown only when at least 2 same-unit records exist.
Add a manual historical record

Historical actual use is project-specific evidence, not a universal waste factor, coverage rule or purchase recommendation. Keep product instructions and current project conditions controlling.

Project field workflow

Carry this calculation through the project

Capture layout axes, openings and cut notes before quantity planning.

v9 workflow
1 · Measure / recordTile Layout & Cut Planning Worksheet
2 · CalculateUse this calculator with the field facts you verified.
3 · Save to projectKeep the result with the rest of the browser-local Project Workspace evidence. 4 · Execute / reconcileRecord field checks and actual usage without rewriting the original plan.

Home Measure Lab keeps measurement evidence, calculated plans and field actuals distinguishable. Project links are browser-local unless you explicitly export them.

Field execution geometry

Mark it from one datum, then verify it

Use the execution schedule with the live measurement diagram above. Numeric inputs and calculator results remain authoritative; verify field conditions, product instructions, code and structural requirements before construction or cutting.

Mark-out & execution schedule

    US cost intelligence

    Turn the material plan into a local budget scenario

    Use current supplier and contractor figures from your project. The calculator never invents a local rate or national “live” price.

    Enter a current material subtotal manually when the calculator result does not include priced materials.
    Pre-tax project subtotal$0.00
    Tax$0.00
    Contingency$0.00
    Planning total$0.00
    Materials share0%
    Labor share0%
    Quote − planning totalNot entered
    Open Quote Sanity Check

    Home Measure Lab does not fetch, infer, or publish live local prices in this release. Enter current supplier and contractor figures for the project being evaluated.

    This tool compares user-entered scope and cost components. It does not determine whether a contractor quote is fair, excessive, fraudulent, code-compliant, or complete.

    Verified product comparison

    Compare source-backed product inputs before you calculate

    These are specification differences, not product recommendations or live prices. Select a preset in the calculator only when it matches the exact product you plan to buy.

    Package Registry 2.0 procurement references · 15 source-backed quantity presets

    These rows multiply exact cited package or stock specifications by common planning quantities. They are not live inventory or purchase recommendations.

    Planning quantityDerived referenceSource spec
    1 × 50 lb bag · 1/4 × 1/4 × 1/4 in square-notch90.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    2 × 50 lb bag · 1/4 × 1/4 × 1/4 in square-notch180.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    3 × 50 lb bag · 1/4 × 1/4 × 1/4 in square-notch270.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    5 × 50 lb bag · 1/4 × 1/4 × 1/4 in square-notch450.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    10 × 50 lb bag · 1/4 × 1/4 × 1/4 in square-notch900.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    1 × 50 lb bag · 1/4 × 3/8 × 1/4 in square-notch60.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    2 × 50 lb bag · 1/4 × 3/8 × 1/4 in square-notch120.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    3 × 50 lb bag · 1/4 × 3/8 × 1/4 in square-notch180.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    5 × 50 lb bag · 1/4 × 3/8 × 1/4 in square-notch300.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    10 × 50 lb bag · 1/4 × 3/8 × 1/4 in square-notch600.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    1 × 50 lb bag · 1/2 × 1/2 × 1/2 in square-notch42.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    2 × 50 lb bag · 1/2 × 1/2 × 1/2 in square-notch84.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    3 × 50 lb bag · 1/2 × 1/2 × 1/2 in square-notch126.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    5 × 50 lb bag · 1/2 × 1/2 × 1/2 in square-notch210.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22
    10 × 50 lb bag · 1/2 × 1/2 × 1/2 in square-notch420.00 sq ftCUSTOM VersaBond Professional Tile Mortar · verified 2026-09-22

    Thinset Mortar

    ProductPublished / derived inputsVerifiedPrimary source
    CUSTOM VersaBond Professional Tile Mortar
    50 lb bag · 1/4 × 1/4 × 1/4 in square-notch    		bag weight lb: 50 · coverage low sqft: 90 · coverage high sqft: 100 · coverage conservative sqft: 90
    Published estimating range for the cited bag/trowel combination. Required mortar coverage, tile back profile, back-troweling and jobsite conditions can increase use.    		2026-09-22Manufacturer source ↗
    CUSTOM VersaBond Professional Tile Mortar
    50 lb bag · 1/4 × 3/8 × 1/4 in square-notch    		bag weight lb: 50 · coverage low sqft: 60 · coverage high sqft: 67 · coverage conservative sqft: 60
    Published estimating range for the cited bag/trowel combination. Required mortar coverage, tile back profile, back-troweling and jobsite conditions can increase use.    		2026-09-22Manufacturer source ↗
    CUSTOM VersaBond Professional Tile Mortar
    50 lb bag · 1/2 × 1/2 × 1/2 in square-notch    		bag weight lb: 50 · coverage low sqft: 42 · coverage high sqft: 47 · coverage conservative sqft: 42
    Published estimating range for the cited bag/trowel combination. Required mortar coverage, tile back profile, back-troweling and jobsite conditions can increase use.    		2026-09-22Manufacturer source ↗

    Methodology

    Formula & assumptions

    Measured field

    project length × project width

    Rectangular field area remains the quantity basis.

    Joint-aware module check

    dimension ÷ (tile dimension + grout joint)

    A visual/layout cross-check only; it does not replace cut planning.

    Tile purchase target

    measured area × (1 + waste %)

    Waste remains an explicit project allowance.

    Base boxes

    area-based tile count ÷ tiles per box, rounded up

    Package rounding is separate from layout waste.

    Accessory packages

    measured/target area ÷ entered product coverage

    Only calculated when a product-specific coverage value is entered.

    How to measure this project

    Measure each rectangular tile field separately when dimensions or tile orientation differ, then use the calculator for one consistent field at a time. Grout joint width is used only to show an approximate module count across the field; edge cuts and layout origin are not inferred here. Use Tile Layout Calculator to compare centered straight-grid phases before finalizing the purchase allowance.

    Before you buy materials

    Use box quantity from the actual tile carton and keep installation waste separate from sealed repair reserve. For thinset and grout, enter the coverage printed for the selected product and installation conditions. Trowel size, substrate flatness, tile back coverage, joint width/depth and pattern can materially change consumption. If the selected finish is marble and you already have a cut-to-size piece or slab schedule, use Marble Calculator to total those measured piece dimensions instead of forcing them through a tile-box model.

    Reference

    Tile waste planning reference

    Layout / conditionPlanning allowanceWhy
    Simple straight layout~10%Routine cuts and breakage.
    Diagonal layout~15%More perimeter cuts and offcuts.
    Patterned layout15% or morePattern alignment can create unusable pieces.
    Repair reserveAdd separatelyKeep matching tile for future repairs if desired.

    Start from a drawing

    Tile Takeoff Studio

    Upload a plan or screenshot, calibrate one known dimension, trace the relevant geometry, and save the measured evidence before returning to this calculator for product-specific planning.

    Open takeoff studio

    Formula & evidence provenance

    Know which part is arithmetic and which part still needs project evidence.

    Method version v13.0. This record does not replace a product label, project drawing, local requirement or professional design decision. See the site-wide method standard →

    Calculation scope

    Estimate field tile from measured surface area, entered waste and the selected tile/package coverage, while keeping trim, niche and setting-material quantities separate.

    Boundary

    Layout, cuts, pattern, wet-area details and movement joints require project-specific review beyond simple area math.

    Evidence mode

    geometry + user-entered product assumptions

    Questions

    Frequently asked questions

    Does grout joint width change the number of boxes I should buy?

    The box plan remains area-and-waste based. Joint width is used as a layout-module cross-check because real border cuts and offcut reuse cannot be inferred from area alone.

    Why are repair boxes separate from waste?

    Installation waste covers cuts and breakage during the job. Sealed repair reserve is intentionally held after installation so matching tile remains available later.

    Are thinset and grout coverage rates built in?

    No universal rate is assumed. Enter the coverage supplied for the selected product and installation conditions; the calculator then rounds that requirement to whole packages.

    When should I use the Marble Calculator instead?

    Use Marble Calculator when the source data is a list of measured marble pieces, slabs or cut-to-size sections. Keep Tile Calculator for a project field that must be converted to tile pieces, boxes and related tile-installation quantities.

    Project pack

    Flooring & tile project pack

    Move from measured area to boxes, layout, repair reserve, mortar/grout and purchasing while keeping product-specific coverage editable.

    Flooring CalculatorContinue →Flooring CalculatorContinue →Plank Floor Layout CalculatorContinue →Vinyl Plank CalculatorContinue →Laminate Flooring CalculatorContinue →Tile Layout CalculatorContinue →
    Embed this calculator on another website

    Use the lightweight Home Measure Lab widget. The embedded tool is noindex and does not add analytics by default; readers can open the full Home Measure Lab calculator for formulas, assumptions and source notes.

    Keep the natural “Powered by Home Measure Lab” attribution inside the widget. Use the built-in brand attribution as provided; no extra link is required.

    Next step

    Keep this project moving

    Follow the measurement into the most useful related reference, calculator or project view.

    Total a measured marble piece/slab scheduleMarble CalculatorContinue →Understand the inputTile Waste Factor GuideContinue →Browse this project typeInterior calculatorsContinue →Combine material plansOpen Project PlannerContinue →

    Planning guides

    Understand the inputs behind this calculator

    All guides →

    Tile & Finish

    Tile Waste Factor Guide

    Plan tile waste for cuts, breakage, layout and pattern without inflating the measured surface area.

    Read guide →

    Tile & Finish

    Tile Box Coverage Explained

    Use tile size, pieces per box and stated carton coverage correctly when turning square footage into a box count.

    Read guide →

    Tile & Finish

    How to Measure a Wall for Tile

    Measure wall tile area around doors, windows, backsplashes and niches while keeping openings and waste explicit.

    Read guide →

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    Grout Calculator

    Estimate grout bags from tiled area, product-specific coverage per bag and a project allowance for joints, waste and touch-up.

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    Tile Trim Calculator

    Estimate tile edge-trim stock pieces from measured exposed-edge runs, returns, entered waste and selected stock length.

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