Room dimensions
Even small dimension changes affect area and can meaningfully shift the number of tiles and boxes you need to order.
Material planning tool
Tile Calculator
Calculate how many tiles and boxes you need by room size, tile size, waste allowance, and packaging before ordering materials.
Use this Tile Calculator to compare formats, switch between metric and imperial sizing, and avoid under-ordering when the layout or packaging rounds quantities up.
- Room dimensions in ft/in or meters/centimeters
- Preset or custom tile sizes with packaging logic
- Rounded results for tile counts, waste, and boxes
Tile quantity planning
Order with buffer
Count pieces before you buy Room size, tile format, waste allowance, and box packaging all change the final order quantity.
Floor area
Auto-calculated
Waste
5-15%+
Packaging
Tiles or boxes
Interactive estimate
Answer a few questions to calculate your tile quantity
What changes tile quantity the most?
Tile counts move with format, layout waste, and packaging rules even when the room area itself does not change.
Tile format
Large formats reduce the number of pieces, while smaller formats increase counts and can create more packaging rounding.
Waste allowance
Straight layouts usually need less extra material than diagonal layouts or more complex patterns with heavier cutting.
Use the calculator before you order tile
A tile quantity calculator is most useful when you are still comparing tile sizes, checking whether a certain format is practical, or deciding how much waste to carry in the order.
That is where Re:Build helps. You can compare piece counts, test box packaging assumptions, and move from a quick tile order check to a broader flooring plan when you are ready to price the install.
Best for early material planning
Check tile counts before placing an order or asking a supplier to quote boxes.
Useful for layout comparison
See how waste changes when the layout moves from simple straight runs to more complex patterns.
Built for practical ordering
Round up counts and boxes before the order goes out, not after install day starts.
Tile calculator FAQ
Useful answers for planning floor tile quantities, box counts, and ordering waste before purchase.
How many tiles do I need for my floor?
You need enough tile to cover the room area, plus a waste allowance that matches the layout. This calculator rounds up the tile count so the order reflects whole pieces.
What waste allowance should I use?
A straight layout often works with around 5 percent, diagonal layouts often need around 10 percent, and more complex patterns may need 15 percent or more depending on cuts and breakage risk.
Can the calculator convert between imperial and metric sizing?
Yes. Room dimensions support ft/inches and meters/centimeters, and custom tile sizes can be entered in either inches or millimeters.
Can it work out boxes as well as tiles?
Yes. Enter tiles per box and optionally box coverage. The calculator will round up the required number of boxes and show extra tiles created by packaging.
Why does the final order sometimes exceed the exact tile count?
Orders are rounded up for waste and then may be rounded again to full boxes. That extra buffer is normal and helps avoid shortages once cutting starts.
Looking for more renovation tools?
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