Finishes · Paint coverage
Measure the surface.
Plan every coat.
Subtract openings, multiply by coat count, and use the coverage printed on your paint to estimate whole gallons.
Estimated paint order
3 gallonsNet wall area344 ft²
Area across coats688 ft²
Adjusted coverage757 ft²
Coverage varies by product, surface texture, porosity, application method, and color change. Ceilings, trim, primer, touch-ups, and product-specific recoat requirements are separate.
Method and limitations
Net wall area × coats × waste, divided by coverage.
The result rounds up to whole gallons. Use the product label’s coverage and treat primer, ceilings, trim, cabinets, and unusually porous surfaces as separate scopes.