Example: Wall area (or L×H total): 1,200 sq ft · Doors & windows to subtract: 120 sq ft · Coats: 2 · Coverage per gallon: 350 sq ft → Paint needed: 7 gallons.
Exact amount: 6.17 gal
Area to paint: 2,160 sq ft
Frequently asked questions
How do I calculate paint? Enter your numbers above and the result updates instantly. For example: Wall area (or L×H total): 1,200 sq ft · Doors & windows to subtract: 120 sq ft · Coats: 2 · Coverage per gallon: 350 sq ft → Paint needed: 7 gallons.
Is this Paint Calculator free? Yes — completely free with no sign-up or paywall. It runs entirely in your browser and keeps working offline; the numbers you enter never leave your device.
How accurate is it? It uses the standard published formula for paint. Results are estimates for planning — not financial, tax, medical, engineering, or legal advice.