Skip to content
ToolQivo

Tile Calculator

Tiles, boxes, grout and adhesive for any area.

Calculators Reviews Free · no sign-up

Area to tile

Tile

Everything you need

ItemQuantityNote

Tiles to buy

—

Details

Area to tile—
Tiles without waste—
Boxes needed—
Coverage per tile—

—

Estimated tile cost, spare box included

Buy one box beyond the calculation and store it flat. Tile is produced in dyelots that shift subtly between batches, so a replacement bought two years later for a cracked tile will rarely match the rest of the floor.

Quick Tool Overview

The Tile Calculator works out how many tiles an area needs allowing for grout joints, converts that into whole boxes, and adds the grout and adhesive to go with them — with a waste allowance that changes according to the layout pattern.

What it does
Calculates tiles, boxes, grout and adhesive for an area
You give it
The area, tile size, joint width and layout
You get back
Tile count, whole boxes, grout and adhesive
Best for
Floor and wall tiling, bathrooms and kitchens
Calculators Free, unlimited use No sign-up Runs in your browser

About the Tile Calculator

Calculate how many tiles a floor or wall needs, allowing for grout joints, and convert that into whole boxes plus the grout and adhesive to go with them. Rectangular, L-shaped and multi-area rooms are all supported.

Layout drives the waste allowance more than anything else. A straight grid needs about 10 percent, a diagonal layout 15, and herringbone or complex patterns 20 or more, because every edge cut leaves an offcut too small to use elsewhere. It is also worth buying a spare box beyond the calculation: tile is made in dyelots that shift subtly between batches, so a replacement bought two years later for a cracked tile rarely matches.

Key features of the Tile Calculator

Grout joints accounted for

Joint width changes how many tiles fit, and the calculation includes it rather than assuming tiles butt together.

Waste by layout

10 percent straight, 15 diagonal, 20 or more for herringbone — because every edge cut leaves an unusable offcut.

Rounds up to whole boxes

Which is what you can actually buy, rather than a tile count you then have to convert.

Dyelot warning

Recommends keeping a spare box, since tile batches shift in colour and a later replacement rarely matches.

Grout from your dimensions

Estimated from tile size and joint width rather than a flat rate, since large tiles use far less.

How to use the Tile Calculator

  1. 1

    Measure the area

    Length and width of the floor or wall, in feet, inches or metres.

  2. 2

    Enter the tile size

    Tile dimensions plus the grout joint width, which affects how many tiles fit.

  3. 3

    Choose the layout

    Straight, diagonal or herringbone — each carries a different waste allowance.

  4. 4

    Read the order

    Tiles, whole boxes, grout, adhesive and the spare box to keep back.

Frequently asked questions

Divide the area to be tiled by the area of one tile, including its share of the grout joint, then add the waste allowance for your layout and round up to whole boxes.

Reviews of the Tile Calculator

What people who use the Tile Calculator think of it. Reviews come from visitors and are posted as written.

No ratings yet

Yours would be the first.

  • 5 0 reviews rated 5 stars
  • 4 0 reviews rated 4 stars
  • 3 0 reviews rated 3 stars
  • 2 0 reviews rated 2 stars
  • 1 0 reviews rated 1 star

Write a review

Used this tool? Your rating helps the next person decide.

Your rating

Plain text only — links, email addresses and HTML are not accepted. Your name and review are shown publicly; nothing else is collected. See the privacy policy.

0 reviews

Newest first

No reviews yet

Be the first to rate the Tile Calculator. It takes half a minute and no account.

Write the first review

More calculators