Enter your project dimensions to estimate paint coverage, primer amount, and how many gallons or quarts to buy.
Your results will show total area, paintable area, gallons needed, quarts needed, and an estimated primer amount.
This calculator estimates how much paint you need based on square footage, number of coats, and surface type. Most paints cover around 350 to 400 square feet per gallon on smooth surfaces.
If you're unsure whether your surface needs primer, try the primer calculator. You can also estimate your total project cost using the cost estimator.
A common rule is about 350 to 400 square feet on a smooth surface. Rough or textured surfaces need more paint.
Yes. Buying extra helps with touch-ups and prevents color mismatch later.
Primer is recommended for new drywall, glossy surfaces, laminate, or when covering dark colors.