Crown emulsions and Sandtex, ready to go
The paint calculator on this page starts with Crown Walls & Ceilings Matt Emulsion picked. Crown shows coverage per litre next to each tin size on its product pages rather than in a sentence, and for this paint it is 14 m² per litre, which is now in the coverage box. The tin sizes on offer are the 2.5 L and 5 L ones Crown lists, so the result tells you how many of each to buy, for example a 5 L plus a 2.5 L tin rather than a 10 L one Crown doesn’t list for it.
Type each room’s size, adjust the doors and windows, and pick a different Crown paint from the Paint menu at any time: the coverage and tins follow.
Two coats, as Crown advises
Crown’s own answers to common questions say most decorating projects will require two coats, and ask you to allow for that when working out quantities, so the calculator keeps Coats at 2. It also lists what changes the number: the surface you are painting, its condition, the colour you are covering and the colour you have chosen. A pale colour over a dark one is the usual reason to plan a third coat.
Masonry: smooth or textured
Painting render or brick? Choose House exterior, which moves the picker to Sandtex Microseal Smooth Masonry at 16 m² per litre. If you are buying the textured finish, pick Sandtex Microseal Textured Masonry instead: Crown lists it at 6 m² per litre, and it comes in 5 litre tins only, so the tin count rises quickly on a whole house.
Crown paints in the calculator: the range sold in the UK
| Paint | For | Coverage, as stated | Tins |
|---|---|---|---|
| Walls & Ceilings Matt Emulsion | Walls | 14 m² per litre | 5 L, 2.5 L |
| Walls & Ceilings Silk Emulsion | Walls | 14 m² per litre | 5 L, 2.5 L |
| easyclean Matt | Walls | 14 m² per litre | 5 L, 2.5 L |
| Sandtex Microseal Smooth Masonry | Outside walls | 16 m² per litre | 5 L, 2.5 L |
| Sandtex Microseal Textured Masonry | Outside walls | 6 m² per litre | 5 L |
What one room takes in each
Two coats. Rooms: 4 × 3.5 m room with 2.5 m walls, one door, one window, walls and ceiling (ceiling only for a ceiling paint). Outside: 8 × 10 m house with 5.2 m walls and two gables.
| Paint | Area | Paint, 2 coats | Buy |
|---|---|---|---|
| Walls & Ceilings Matt Emulsion (room, 14 m²/L) | 48.6 m² | 6.9 L | 1 × 5 L + 1 × 2.5 L |
| Walls & Ceilings Silk Emulsion (room, 14 m²/L) | 48.6 m² | 6.9 L | 1 × 5 L + 1 × 2.5 L |
| easyclean Matt (room, 14 m²/L) | 48.6 m² | 6.9 L | 1 × 5 L + 1 × 2.5 L |
| Sandtex Microseal Smooth Masonry (house, 16 m²/L) | 189.8 m² | 24 L | 5 × 5 L |
| Sandtex Microseal Textured Masonry (house, 6 m²/L) | 189.8 m² | 63 L | 13 × 5 L |
Coverage per coat for the Crown range sold in the UK, from the maker's pages linked above, checked September 2026. Crown and its product names are its owner's trademarks, used only to describe the products; Meadow Tools is not affiliated with or endorsed by Crown.