Paint Calculator
Determine how much paint you'll need for your walls and ceiling to avoid buying too much or running short.
Paint Calculator
Estimate how much paint you'll need for your walls and ceiling.
Wall Dimensions
Standard paint coverage is around 350-400 sq ft per gallon. Premium paints may cover more area.
Paint Calculation Tips
Calculating the right amount of paint saves money and reduces waste. Most paint is sold in gallons and quarts, with each gallon typically covering 350-400 square feet with one coat on a smooth, primed surface.
Factors That Affect Paint Coverage
- Surface texture (smooth walls need less paint than textured ones)
- Surface porosity (new drywall absorbs more paint)
- Paint quality (premium paints often have better coverage)
- Application method (spraying uses more paint than rolling)
- Color change (going from dark to light may require more coats)
Painting Best Practices
For best results, prepare surfaces properly by cleaning, patching, and priming before painting. Use quality brushes and rollers appropriate for your paint type and surface. Apply paint in thin, even coats rather than thick layers for better adhesion and finish.