How much paint for a room

Gallons come from the wall area, the number of coats, and how far a gallon spreads. Doors and windows reduce the area you paint. A ceiling adds area if you include it.

Coverage on the can is a planning yield. A textured wall or a dark color can use more paint than the label. The calculator starts from the coverage you enter.

Order from the result, then check the can

Use the gallon figure as the quantity to buy, then confirm it against the product you actually chose. The estimate is not a color match and not a bid from a painter.