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Wall Paint Calculator

Calculate how much paint you need for your walls

Wall Dimensions

Results

Total Area
Gallons Needed
Estimated Cost

Wall Painting Tips

  • Subtract about 20 sq ft per standard door and 15 sq ft per window from your total wall area.
  • For an entire room, add up the length of all walls and multiply by the ceiling height.
  • Use painter's tape to protect trim, ceilings, and edges for clean, professional-looking lines.
  • A coat of primer is essential when covering dark colors with lighter shades or painting new drywall.
  • Eggshell and satin finishes are popular for walls as they are easy to clean and hide minor imperfections.
  • Roll paint in a "W" pattern for even distribution, then finish with straight vertical strokes.

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