Paint Calculator

Calculate how much paint you need for your project based on wall dimensions and openings.

Project Details

Enter your wall dimensions to see results

Standard Coverage: Most paints cover approximately 350 square feet per gallon with one coat.

Deductions: Each door is estimated at 20 sq ft and each window at 15 sq ft. These are subtracted from the total wall area.

Multiple Coats: The calculator multiplies the paintable area by the number of coats you specify. Always round up to the nearest whole gallon.

Note: Coverage may vary based on paint type, surface texture, and application method. Consider purchasing 10% extra for touch-ups.