Paint Coverage Calculator

Paint Coverage Guidelines

Standard Coverage Rates:

• Smooth walls: 400-450 sq ft per gallon
• Average walls: 350-400 sq ft per gallon
• Textured/rough walls: 250-350 sq ft per gallon
• Porous surfaces: 200-300 sq ft per gallon

Tips for Accurate Estimation:

• Measure all walls and multiply length by height
• Standard door size: 20 sq ft, standard window: 15 sq ft
• Always buy extra paint (10% waste factor recommended)
• Dark colors may require an additional coat
• Primer may be needed for new drywall or color changes