Know exactly how much to buy before you start
Free calculators for tiles, grout, adhesive, caulk, plaster, paint, bricks, concrete, screed and mortar. Enter your room size and get quantities with wastage included.
Pick the job you’re working on
Each calculator asks only for what it needs and gives you a number you can take to the shop.
Tiling4 calculators
Tile calculator
Tiles and boxes for floors and walls, with layout wastage.
Grout calculator
Kilograms of grout from tile size, joint width and depth.
Tile adhesive calculator
Bags of adhesive from area, trowel notch and tile type.
Caulk calculator
Cartridges for baths, showers, windows and skirting gaps.
Walls & finishing2 calculators
Building4 calculators
Brick calculator
Bricks for walls, with mortar joints and wastage included.
Concrete calculator
Cubic metres and bags for slabs, footings and posts.
Screed calculator
Volume and bags of screed for your floor area and depth.
Mortar calculator
Cement and sand for bricklaying, blockwork and pointing.
From room size to shopping list in three steps
Measure the space
Length, width and height are enough. Subtract doors and windows if you like.
Choose your materials
Select tile size, joint width, coats or thickness. Sensible defaults are pre-filled.
Get your quantities
See what to buy, with a safety margin, and note it down for the shop.
Built for people who do the work
Wastage is built in
Cuts, breakage and uneven walls are accounted for, so you don’t make a second trip.
Switch units anytime
Metres, feet, litres or gallons. Use whatever your supplier sells in.
Made to work together
Your tile area carries across to grout and adhesive, so you only measure once.
Clear, plain answers
No jargon. Each result explains how the number was worked out.