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Tile Calculator

Floor and wall tiles, boxes, allowance and coverage.

Your project

Enter your measurements. Required fields are labeled; assumptions and optional quotes can be edited below.

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Calculator inputs

If an area transfer is unavailable: Copy your area and enter it in the next calculator.

Surface 1
Length Required
Enter whole feet and inches less than 12. One blank component means 0.
Width Required
Enter whole feet and inches less than 12. One blank component means 0.
Use a decimal point. The physical area is preserved when units change.

Optional net-area deduction. Must be less than this rectangle’s gross area; zero is valid.

Up to 20 nonoverlapping rectangles.

Tile product and allowance
Tile face length Required
Use a decimal point. Complete or clear an unfinished measurement before changing its units.
Tile face width Required
Use a decimal point. Complete or clear an unfinished measurement before changing its units.

Actual face dimensions, 0.197–118.11 in; nominal product names are not geometry.

0–50%. Configurable allowance for cutting, breakage and spares; not a guaranteed recommendation.
Optional actual whole tiles in each box, 1–10,000. Area-only box labels are unsupported.
Optional straight-grid cross-check
Optional cost
Optional supplied price; zero is valid. Separate price branches are retained.

How this calculator works

Enter nonoverlapping floor or wall rectangles and optional deductions, or a known net tiling area. Supply actual tile face dimensions, a cutting/breakage/spares allowance, and optionally actual tiles per box. All net surface area is summed before any purchase rounding.

Tile estimate formularequired tiles = ceil(net area × (1 + allowance) ÷ tile face area); boxes = ceil(required tiles ÷ tiles per box)

Assumptions and limitations

The area estimate remains the procurement basis. The optional straight-grid check uses full rectangles before deductions, includes edge cuts, and does not reuse offcuts. It is not an exact cut plan and cannot reduce procurement. Grout gap is geometry only; follow product joint instructions. No grout, mortar or adhesive quantity, diagonal layout, mosaic sheet or pattern optimization is included.

Allowance is the additional requirement before purchase rounding. Purchase surplus is the capacity bought beyond that adjusted requirement. These are separate quantities. Prices are optional user-entered USD quotes, including valid zero prices; they exclude tax, delivery and labor. Missing prices never imply a free product.

US/Metric changes representation only. An explicit market preset changes its listed product assumptions; it does not change project geometry. Required project measurements begin blank, and every active row must be valid before a result is shown.

Worked examples

TILE-01: A 10 × 8 ft floor with 12 × 12 in tiles and 10% allowance needs 88 whole tiles. Boxes of 10 mean 9 boxes / 90 purchased tiles. At $25/box, cost is $225.00. The as-entered grid with a 0.125 in gap gives 80 slots and does not change procurement.

TILE-02: A 5 × 2.4 m wall less 2 m² gives 10 m² net, or 11 m² with 10% allowance. Tiles of 300 × 600 mm need 62 whole tiles. Boxes of 8 mean 8 boxes / 64 tiles. At $2/tile, cost is $128.00. A 3 mm gap gives 68 straight-grid slots and a higher-grid warning.

Verify a cutting layout, product joint instructions and actual box contents before ordering.

Methodology and conversion rules

Guides

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