Flooring
How Many Tiles Do I Need?
Give us the surface size and tile size, and we return whole tiles, boxes to buy and the spare tiles you will have.
- 01Measure
- 02Adjust
- 03Result
- 04Shop
01 — Measure
Tell us about the job
Common: 30, 45, 60 cm
02 — Adjust
Material buffer
10% covers straight cuts. Use 15% for diagonal layouts and 5% extra for large-format tiles.
Before you start — measure this
- Surface length
- Surface width
- Tile length
- Tile width
- Tiles per box
03 — Result
46
Tiles required
- Surface area
- 7.5 m²
- Adhesive (approx.)
- 30 kg
04 — Shopping list
Printed on the box
6 × 8
- Total purchased
- 48
- Expected leftover
- 2
Optional — planning estimate, not a live price.
Stored in this browser only. No account needed.
How we got this number
- Surface area
- 7.5 m²
- Tile size incl. grout
- 60.3 × 30.3 cm
- Tiles before waste
- 41
- + 10% cutting waste
- 46 tiles
Planning estimate: this calculation helps you estimate material quantities. Actual requirements vary with site conditions, product coverage, installation method and waste. Confirm with the manufacturer or a qualified professional when appropriate.
What to know about this material
- Tiles are sold by the box — order whole boxes and keep the offcuts.
- Order all boxes in the same shade batch; production runs vary slightly.
- Keep 2–3 spare tiles after the job for future breakages.
Frequently asked
- How much extra tile should I order?
- 10% for a standard straight layout, 15% for diagonal or herringbone, plus a few spares for repairs.
- Do grout lines change the count?
- Slightly. A 3 mm joint on a 300 mm tile adds about 1% to the effective tile size, which this calculator includes.
- How much adhesive do I need?
- Roughly 4 kg per m² for a standard notched trowel; large-format tiles can need 5–6 kg per m².
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What this calculator answers
The highest-intent, lowest-competition searches this page is built to answer outright — every one of them is a quantity question you can settle above without leaving the page.
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Questions this page answers
This page is built around one job: turn a wall or floor area into a tile count, boxes, adhesive and grout.
- How many 12x12 tiles for 100 square feet?
- How much grout for a bathroom floor?
- Tile waste allowance for cuts?
- How many boxes of tile for a backsplash?
Also known as: how many tiles do i need, tile quantity estimator, floor tile calculator, wall tile calculator.