Paint Coverage Calculator

Estimate how much paint you need for a room or surface from wall dimensions, openings, and coats. Runs locally in your browser.

Wall width

m or ft

Wall height

m or ft

Number of walls

count

Openings area

doors/windows total area

Coats

number of coats

Coverage

m² or ft² per litre

Enter dimensions to estimate paint needed.

All calculations run locally in your browser — nothing leaves your device.