Paint Coverage Calculator
Running out of paint mid-wall or buying three extra tins is equally frustrating. Enter your room dimensions and get a precise, waste-adjusted quantity to buy.
Painting Guide
Paint Coverage Rates
Emulsion: 12–15 m² per litre. Gloss/eggshell: 12 m² per litre. Specialist paints vary — always check the tin. This calculator uses a 10% waste allowance, which accounts for brush trim lines, uneven coverage, and spillage.
How Many Coats?
Light over light: 1–2 coats. Dark over light: 3 coats minimum. White over dark: use a tinted primer first, then 2 coats. Primer significantly reduces the number of topcoats needed when changing colours dramatically.
Buying Tip
Buy all your paint from the same batch (same lot number) to avoid slight colour variations between tins. If you're close to a round number of tins, always round up rather than down.
Related products on Amazon
As an Amazon Associate we earn from qualifying purchases.