Construction & Architecture / Materials & Design
Paint Coverage Calculator
Doors
Windows
Typical: 350-400 sq ft
Optional
Paint Coverage Formula
Wall Area = (Length × Height × 2) + (Width × Height × 2) - Door Area - Window Area
Total Area = Wall Area × Number of Coats
Gallons Needed = ROUNDUP(Total Area / Coverage per Gallon)
Coverage tips: Rough or porous surfaces may require more paint. Primer coats typically cover 200-300 sq ft per gallon.
Use this paint coverage calculator to compute materials & design results from your inputs.