How Much Paint for a 10x10 Room
Estimate gallons for a small 10x10 room with common wall heights, openings, coats, and waste.
Calculate wall area
A 10x10 room with 8 foot walls has 320 square feet of wall area before openings.
Adjust for doors and windows
A standard door removes about 21 square feet and a standard window removes about 12 square feet.
Apply coats and waste
Multiply by the number of coats, then add waste for roller loading, touch-ups, and uneven surfaces.
Use the paint calculator
Enter 10 feet for length and width, then adjust wall height and openings to match the actual room.
FAQ
Can one gallon paint a 10x10 room?
It can cover some one-coat refresh jobs, but two coats usually require more than one gallon.
Do closets count?
Count closets if they will be painted with the same wall paint.
What waste percentage should I use?
Use about 10% for a simple smooth-walled room.
Related guides
Next step
Open the calculators and enter your dimensions to estimate materials before you shop.