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Flooring and Tile Estimator

Use this flooring and tile estimator entirely in your browser.

ResultEstimated tiles: 123

Measured floor area: 20.00 m²

Area including 10.0% allowance: 22.00 m²

Each tile covers 0.1800 m²

Layout, cuts, pattern matching, breakage, spare stock, and pack sizes may require a different quantity.

Calculations happen locally in your browser.

How to use this calculator

  1. Enter the labelled values and review the live result.
  2. Review the live result and use Copy result when you need to share it.

How the calculation works

Floor area plus the selected allowance is divided by the area of one tile, and the count is rounded up.

Formula

Tiles = ceil((length × width × (1 + allowance ÷ 100)) ÷ tile area)

Step-by-step calculation

  1. Enter the labelled values and review the live result.
  2. Floor area plus the selected allowance is divided by the area of one tile, and the count is rounded up.
  3. Check the displayed result, then copy it if needed.

Worked example

A 5 m by 4 m floor using 600 mm by 300 mm tiles with 10% allowance requires 123 tiles.

Risk guidance

Area and whole-tile rounding

The floor area and allowance are divided by one tile's face area. The result rounds up to a whole tile, but does not account for how tiles are packed or sold.

Plan the actual layout

Room shape, pattern, grout lines, borders, cuts, matching batches, breakage, and spare stock affect ordering. Check the layout and supplier pack quantity.

Frequently asked questions

Does this tool send my inputs anywhere?

No. The interactive calculation runs in your browser and this site does not submit tool inputs to a backend.

How should I use the result?

Use it for early planning only. Verify measurements, definitions, current local requirements, and the complete design with the relevant authority and appropriately qualified professionals.

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