Paint Coverage Calculator
Estimate gallons of paint needed for any surface area.
Estimate gallons of paint needed for any surface area.
Typically 350–400 sq ft per coat. High-porosity surfaces need more.
Yes — add 10% for trim, edges, and touch-ups.
Perimeter × ceiling height, minus doors and windows.
Results are estimates for planning purposes. Verify with product labels and local requirements before purchasing materials.