Wall tiling calculator

Enter the walls and tiled height, take off doors and windows, and get the tiles, boxes, adhesive and grout you need. Free, with no sign-up.

Measurements

Total width of walls to tile (m)

Tiled height (m)

Extra area, e.g. a boxed-in pipe or window reveals (m²)

Doors not tiled (number)

Size of each door (m²)

Windows and other gaps (m²)

Tiles

Layout

Wastage allowance (%)

Tile length (mm)

Tile width (mm)

m² per box (optional)

Adhesive

Tile and bed

Adhesive (kg per m²)

Adhesive bag size (kg)

Grout

Joint width (mm)

Tile thickness (mm)

Grout bag size (kg)

Area to tile–

Tile area to buy (with wastage)–

Boxes–

Approx. number of tiles–

Adhesive–

Grout–

Planning estimates only. Adhesive figures are typical manufacturer consumption rates (e.g. Mapei Adesilex P9); grout uses the standard formula (L+W)/(L×W) × joint width × tile thickness × 1.6, plus 10%. Always check the data sheet for the product you are using.

HOW THE NUMBERS WORK

Working out walls

Add up the width of every wall you're tiling and multiply by the tiled height. Use the full height for a floor-to-ceiling bathroom, or measure to the top of the splashback or the half-height line. Take off doors and windows: a standard internal door is about 0.8 m wide and 2 m high, so roughly 1.6 m². Add back window reveals and boxing, which are easy to forget and full of cuts. Mapei's data sheet gives about 2.5–3 kg/m² of adhesive for standard wall tiles, and about 2 kg/m² for mosaics.

Quoting a bathroom

A step-by-step guide with a worked example for a 2.5 × 2 m bathroom.

Read the guide →

Showers need tanking

Price the waterproofing as its own line on the quote.

Pricing tanking →

Tile wastage

How much extra to allow for each layout, room and tile size.

Read the wastage guide →

DOING THIS ON A REAL JOB

Want TileIQ to do this on every job?

Measure each wall in TileIQ, or straight from a Leica Disto by Bluetooth, and it works out tiles, adhesive, grout and tanking for every wall and floor, then puts them into the quote.

Floor too?

Work out tiles, adhesive and grout for the floor from the room size.

Floor tiling calculator →

Leica Disto™ integration

Connect a compatible Leica Disto by Bluetooth for fast, accurate measurements.

See how it works →

Use your rates on every real quote.

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Just looking? Try the demo (no account, nothing saved).

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