How much paint for a ceiling?
Ceiling area = length × width. A 12×14 room has 168 sq ft of ceiling. At 350 sq ft/gallon and one coat, you need about half a gallon — buy one gallon for touch-ups.
Ceiling Paint Calculator
Ceiling paint is usually flat or matte white. Enter room length and width — we calculate ceiling square footage only and default to one coat on white over white.
Rooms
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Project settings
Default 10% for touch-ups
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Related guides
Frequently asked questions
One coat or two on ceilings?
Repainting white over white is often one coat. Color changes or stained ceilings need primer plus two coats — adjust in project settings.
Can I paint walls with this calculator?
This page sets surface to ceiling only. For walls and ceiling together, use the room paint or interior paint calculator.
Related calculators
Paint Calculator · https://paint-calculator.ca/ceiling-paint-calculator/