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Tiles / Flooring Calculator

Estimate tile quantities and wastage.

Construction Estimation SuiteStep 1 of 5

Project & Input Data

no.
%

An editable user-defined allowance — not a universal engineering requirement.

Engineering Assumptions

  • The floor is a regular rectangle and joint widths are neglected.
  • Complex laying patterns and vein matching are not included.
  • All percentages and inputs are user-defined; the calculation is purely arithmetic and assumes no particular code or specification.

Formula Summary

  • Floor area = L × W × areas
  • Tile area = tile L × tile W
  • Base tiles = floor area ÷ tile area
  • Total tiles = ceil(base tiles × (1 + waste%))

Results

Enter your data and press Calculate to see the results.

Engineering Insight

Diagonal patterns, cuts, irregular room geometry, large tile formats and shade-matching requirements may all require a higher waste allowance than the default.

Recommended Action

Order an attic-stock surplus from the same production batch and review the setting-out drawing before confirming the quantity.

Next step

This calculator is fully usable as it is. Professional adds saved projects, calculation history and PDF/Excel reports; Premium adds the integrated workflows and the BOQ generator.

Workflow: Construction Estimation SuiteAll tools in this disciplineCompare levels and pricing

Estimating tiles by area alone under-orders every time cuts are involved. This calculator divides the floor area by the tile area, applies the cutting-waste percentage you choose, and rounds up to whole tiles so the order matches what the site can actually lay.

Method and assumptions

  • Floor area = L × W × areas
  • Tile area = tile L × tile W
  • Base tiles = floor area ÷ tile area
  • Total tiles = ceil(base tiles × (1 + waste%))
  • The floor is a regular rectangle and joint widths are neglected.
  • Complex laying patterns and vein matching are not included.
  • All percentages and inputs are user-defined; the calculation is purely arithmetic and assumes no particular code or specification.

Worked example

Two rooms of 5.20 m × 4.40 m tiled with 600 × 600 mm tiles and 8% cutting waste.

Worked example results
ResultValue
Total floor area45.76 m²
Tile area0.36 m²
Base tile count (whole tiles)128 tiles
Exact calculated requirement127.11 tiles
Waste allowance10 tiles
Recommended total tiles138 tiles

These figures are produced by the same calculator engine used on this page.

Frequently asked questions

Are skirting and thresholds included?
No. The result covers floor field tiles only. Skirting, thresholds, adhesive and grout are separate items.
How is rounding handled?
The tile count is always rounded up to the next whole tile after waste is applied, because part tiles cannot be ordered.
Can I use it for wall tiling?
Yes, if you enter the wall area as the surface dimensions. The arithmetic is the same; only your waste assumption may differ.

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Next step

Free calculators are open to everyone. Project saving and PDF/Excel reports come with Professional, and integrated workflows with Premium.