Work out floor tiles (with wastage and skirting) and painting quantities (emulsion, enamel and primer litres) for a room or a whole floor — the same arithmetic you would do on the back of a measurement sheet, done instantly.
Enter the finished room dimensions. Tiles are counted whole (rounded up) after adding a cutting-and-breakage wastage allowance on the area.
Skirting strips are cut from full tiles on site — one 600 × 600 tile, for instance, yields six strips of 100 mm skirting, i.e. 3.6 running metres. The 5 % default wastage suits straight rooms; take 7–10 % where there are many cut edges, diagonal laying or large-format tiles in small rooms.
Enter the wall area directly if you have it from the details of measurement, or leave it blank and let the length × height helper work it out. Openings (doors, windows, ventilators) are deducted in full.
Coverages are typical figures for a smooth plastered surface in good condition; a rough, porous or freshly-plastered wall drinks noticeably more. The first coat always spreads less than the datasheet value — the midpoint used here averages that out over two coats.
Everything on the calculators index is free, works offline once loaded, and follows the same conventions.
Bricks per m³, mortar volume by mix, plaster cement-sand quantities — the items that usually precede flooring in the abstract of cost.
Open calculator →Cement bags, sand and coarse aggregate for nominal mixes M5 to M25 with the standard 1.54 dry-volume factor.
Open calculator →Metres–feet, m²–ft², m³–cft and the other conversions that come up while checking old measurement books.
Open calculator →