How Much Paint Do I Need?
1
Select Room Shape
Rectangle
Square
Custom
2
Calculate Square Footage
Enter the height and width of each wall in feet to calculate the square footage.
Subtract windows and doors
A standard door accounts for 20 sq ft, and an average window accounts for 15 sq ft.
Windows
Doors
Since ceilings are typically painted a different color, ceiling paint is calculated separately.
0 sq ft
Coats:
Wall: 0 gal
These calculations are estimates. One gallon typically covers ~350 sq ft; actual coverage varies by surface and method.