Ceiling Paint Calculator
Estimate paint needed to cover a ceiling.
How It Works
Gallons = ceil((Length × Width × Coats) ÷ 350).
Example
A 20 ft × 15 ft ceiling with 2 coats: (300 × 2) ÷ 350 = 2 gallons.
Frequently Asked Questions
Do ceilings need the same paint as walls?
Flat ceiling paint is common because it hides imperfections, but flat wall paint also works.
Is coverage the same as walls?
Yes, roughly 350 sq ft per gallon per coat for smooth ceilings.
Should I prime first?
Primer is recommended on bare or stained drywall; account for it as an extra coat.