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Person painting a wall using a roller, a tray, and a ladder.
How much paint do you need?
  • Wall Icon Wall 1
    Length (ft)
    Height (ft)
Wall Icon
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sq ft
*Recommended gallons assumes 2 coats of paint


Do I need primer?
Most modern paint has primer in it. Be sure to check the paint's page for information on primer.
How many coats do I need?
Generally at least two, but you might need more if you're painting over a dark wall. Our paint calculator assumes that a gallon covers 350 sq ft. using two coats of paint.
What are some average sizes?
Ceilings are commonly 10–12 ft. high, small rooms (second bedrooms) average 10–15 ft. and master bedrooms average 14–18 ft.