Paint Calculator

Understanding Paint Coverage

Most paint manufacturers specify that one gallon of paint covers approximately 350-400 square feet per coat. However, actual coverage can vary based on:

• Surface texture (smooth walls vs. textured or porous surfaces)
• Paint quality (premium paints often have better coverage)
• Application method (roller, brush, or sprayer)
• Color change (dark to light or vice versa may need extra coats)

How Many Coats Do You Need?

The number of coats depends on several factors:

• One coat: Only if you're painting the same color or using premium paint with excellent coverage
• Two coats: Standard for most painting projects (recommended)
• Three+ coats: When making dramatic color changes or covering dark colors

Primer: Do You Need It?

Using primer is recommended for:

• New drywall or unfinished surfaces
• Covering dark colors with light paint
• Stained or water-damaged walls
• Glossy surfaces that need better paint adhesion

Painting Tips for Best Results

• Always buy extra paint (10-15%) for touch-ups and uneven absorption
• Keep paint cans from the same batch to ensure color consistency
• Use quality brushes and rollers for better coverage and finish
• Allow proper drying time between coats (check manufacturer's instructions)
• Consider the sheen: flat, eggshell, satin, semi-gloss, or high-gloss
• Test paint in small areas first, as colors can look different on walls

Cost Considerations

Paint prices vary widely:

• Budget paint: $15-25 per gallon (may need more coats)
• Mid-range paint: $25-40 per gallon (good coverage and durability)
• Premium paint: $40-70+ per gallon (best coverage, often one-coat capable)

Remember: Higher-quality paint often saves money in the long run through better coverage, fewer coats needed, and longer-lasting results.