Enter room dimensions to get the exact paint quantity needed for walls and ceiling.
Calculate an approximate paint requirement from room length, width and height, then subtract doors and windows, choose the number of coats and include the ceiling if required. You can adjust product coverage and wastage to estimate finish-paint litres, primer and total coated area. Real coverage varies with surface porosity, repairs, texture, colour change, application method and the manufacturer’s formulation. New plaster may need additional preparation or primer, while deep colour changes can require extra coats. Always inspect the substrate and compare this planning result with the coverage printed on the selected product before purchase.
Free to use: no account is required. Results are planning estimates and should be checked against drawings, site conditions, current prices and professional advice.