Paint Calculator
Estimate how much paint and how many coats are needed for your walls and rooms.
How to Estimate Paint for Your Room
Calculating the exact amount of paint needed for interior or exterior walls helps you avoid mid-project supply runs or wasteful surplus. By factoring in the total wall surface area, the number of coats required, and typical paint spread rates, you can determine precise gallon requirements.
Standard Coverage Guidelines
- Coverage Rate: Most standard latex or acrylic wall paints cover roughly 350 to 400 square feet per gallon.
- Number of Coats: Two coats are generally recommended for full color coverage, durability, and an even finish.
- Surface Texture: Textured walls, brick, or unprimed drywall absorb more paint, reducing overall coverage per gallon.
Tips for Buying Paint
It is always wise to round up your final gallon estimate or purchase an extra quart for future touch-ups to ensure color consistency across matching batches.