Find out how many liters of paint a wall or room needs, based on area and number of coats.
Based on 11 m² coverage per liter per coat for standard emulsion — coverage varies by paint brand and surface texture, check the tin for the exact figure.
A rough, previously-unpainted wall soaks up more paint than a smooth, previously-painted one. Textured finishes and dark-to-light color changes also need more coats or a primer layer first.
A single coat rarely gives even color, especially over a different base color. Two coats is the practical standard for most interior and exterior residential work.