Quick reference by room size
How much paint do you need?
Pick your room size for an instant gallon answer, then use the free calculator if your ceilings, doors, or windows are different.
12x12 Room
About 2 gallons for 2 coats (walls)
10x10 Room
About 1.5 gallons for 2 coats (walls)
10x12 Room
About 2 gallons for 2 coats (walls)
Bedroom
Calculate by your exact dimensions
Living Room
Calculate by your exact dimensions
Bathroom
Smaller rooms, moisture-ready finishes
Kitchen
Washable finishes + gallon estimates
Dining Room
Calculate by your exact dimensions
Need an exact number?
Guides use standard assumptions (8 ft ceilings, 1 door, 1 window, 2 coats). Enter your real measurements for a precise gallon count.