Tile & Flooring Calculator

Most tile calculators divide the room area by the tile size. Tile does not sit on the floor that way, which is how you end up with a spare box or two short.

This one counts the tile plus its grout joint, because that is what occupies the floor. On 12" tile with a 1/4" joint the difference is about 4%. On mosaics it is closer to 20%.

WHAT IT WORKS OUT

- Tiles or planks to buy, with waste by pattern
- Boxes, from the square feet printed on the carton
- Thinset by trowel notch, grout by the coverage formula
- Deductions for an island, a cabinet run, a tub footprint

THE PART OTHER CALCULATORS SKIP

Start tight against one wall and whatever is left over lands as a cut at the far wall. If that piece comes out at an inch it looks wrong, and it breaks while you are cutting it.

You find out before you start: how wide that last piece lands, and what centring the layout would give you instead. On a wall it knows the top course dies under the cabinets, so it will not warn you about a cut nobody is ever going to see.

WALL TILE, FLOOR TILE, PLANK

Switch to plank or LVT and the grout joint, thinset and grout disappear, because a floating floor uses none of them. The cut list stays.

SET YOUR OWN NUMBERS

Smallest acceptable cut, movement gap at the wall, sanded or unsanded grout, tile thickness. Change any of them and every figure moves with it.

WHAT IS FREE

The calculator. All of it. Every material figure, every layout warning, and sharing the estimate as text.

One thing costs $2.99, once: a printable PDF estimate sheet with every area itemised, a cut list for each run, and the job name and date on it, for handing to the counter or to a customer. No subscription.

No ads, no account, no sign-in.

Figures are estimates. Coverage varies by brand, so check the bag and the carton before you order.