Plan rectangular tile surfaces with actual straight or staggered grid-piece counts, grout, edge cuts, waste and whole-box purchasing.
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01 / PURPOSE-SPECIFIC INPUTS
Rectangular surfaces, tile modules and purchase assumptions
02 / RESULT & INTERACTIVE INSPECTION
Your calculated result, interactive model and supporting work
Fixed-origin layout pieces plus waste applied once100 planned tiles · 10 boxesDisplay precision and modeling assumptions are explicit. Estimated results are not newly measured facts or eligibility decisions.
Surface area
9.2903 m² / 100 ft²
Tile face area
0.09290304 m²
Tile-plus-grout module area
0.09290304 m²
Area-only module estimate · not layout count
100
Intersecting layout pieces before waste
100
Planned tiles after waste
100
Tiles in whole purchased boxes
100
Material cost estimate
$200
Rectangular straight/half-offset grids only. Irregular rooms, obstacles, centered layouts, diagonal/herringbone designs, offcut reuse, perimeter joints and labor are not optimized. Coverage-only supplier boxes cannot establish exact tile inventory. The preview is explicitly cropped when a complete grid would be too large.
Scaled tile faces, real grout gaps and cut edges
Plotted piece: 0.3048 × 0.3048 m; full nominal face. Full surface layout count: 100 pieces.
The same length scale applies in both directions. Grout is physical gap width, not exaggerated stroke thickness. Large layouts are cropped to the first 14 module-lengths and 10 row strips; full piece counts are calculated separately. No offcut is automatically reused.Formula, worked explanation & limitations
Tile module = (0.3048 + 0) × (0.3048 + 0) m. Area-only estimate = ceiling(surface/module area), distinct from the fixed-origin grid count.
The grid starts with a tile at the lower-left reference; straight rows use ceil(length/module length), and staggered odd rows start half a module before the edge. Count every tile piece whose interior intersects the rectangular surface. Grout intervals can meet the outside edge; perimeter/movement joints are not modeled.
Each row strip and edge tile is counted separately. No cut piece is automatically reused elsewhere. Waste 0% is applied once to total layout pieces, then tile count and boxes round upward. No automatic extra pattern percentage is added.
Count-based boxes give an exact purchased tile inventory. Coverage-only boxes use nominal tile-face material area, excluding grout; actual tiles/box remain unknown. If pricing by tile with coverage-only boxes, the estimate uses planned pieces and excludes unquantified extra pieces from box rounding.
Per-surface area and actual modeled layout-piece count
Per-surface area and actual modeled layout-piece count
Surface
Length m
Width m
Area m²
Row strips
First-row pieces
Total pieces
Surface 1
3.048
3.048
9.2903
10
10
100
How to use Tile Calculator
1
Choose a calculation mode and enter its known values
Enter your values locally; no inputs are uploaded.
2
Calculate and inspect the interactive, labeled result
Check validation feedback before reviewing the browser-generated result.
3
Review assumptions and supporting work before using or copying the output
Review the explanation, copy supported outputs or reset the workspace.
Dividing surface area by tile-plus-grout module area ignores partial pieces around edges. The fixed-origin grid counts every intersecting piece separately, with no automatic offcut reuse.
Benefits
Plan rectangular tile surfaces with actual straight or staggered grid-piece counts, grout, edge cuts, waste and whole-box purchasing. Inspect real calculated values through accessible visual controls and review the worked assumptions.
Privacy note
Tile Calculator calculates locally in browser memory. Financial values, schedules, measurements, health inputs and other entries are not sent to a third-party calculation-processing API or stored as a personal profile. Ordinary page requests may still be logged. Clipboard access occurs only when you choose Copy Result.
Frequently asked questions
Why can tile layout counts exceed the area-only estimate?
Dividing surface area by tile-plus-grout module area ignores partial pieces around edges. The fixed-origin grid counts every intersecting piece separately, with no automatic offcut reuse.
How is grout used in the tile estimate and preview?
Module length and width equal tile face dimension plus the nonnegative grout gap. Tile faces and the real gaps are drawn at the same scale. This model allows grout intervals at the outside edge but does not model movement/perimeter joints.
What does the staggered tile pattern assume?
Alternate row strips start half a module before the reference edge. This can create additional cut pieces; the actual count is calculated rather than automatically adding a generic pattern-waste percentage.
How are tile waste and whole boxes rounded?
Entered waste is applied once to total modeled layout pieces, then planned tiles round up. Boxes round up separately. Known tiles-per-box gives purchased inventory including whole-box surplus; waste is not applied again.
What if only tile-box coverage is known?
Coverage-based boxes use nominal tile-face material area excluding grout. That information cannot establish the exact tile count in each box. Tile-priced estimates then use planned pieces and cannot price unquantified extra pieces from box rounding.
Which tile layouts are outside the planner’s scope?
Irregular surfaces, obstacles, centered layouts, negative overlaps, diagonal/herringbone cuts, labor and offcut optimization are unsupported. Large preview grids are explicitly cropped while full modeled piece counts remain available.
