Free tool
Interior painting calculator
A single-room estimator: walls plus an optional ceiling, one paint variant, quick door/window deductions. For a full multi-room project with trim and doors, see Pro.
Room
Paint
Coverage and price below start as labeled sample values — edit them for your actual product.
Result
Enter the room's length and width to see your estimate — or load the sample room below.
Need trim, doors, or multiple rooms in one project?See the planned Pro offer.