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Paint Gallons by Room Size Chart

Use this paint gallons chart to estimate paint needs for bedrooms, living rooms, and whole-room projects.

Last updated: May 2026

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Chart values

Paint Gallons by Room Size Chart values
10x10 room, 2 coats1 to 2 gallons
12x12 room, 2 coats2 gallons
Large living room2 to 3 gallons
Ceilings or dark colorAdd extra paint

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Home Projects Paint Coverage Calculator Estimate how many gallons of paint to buy based on wall area, doors and windows, number of coats, coverage per gallon, and waste. Home Projects Primer Calculator Estimate primer gallons from surface area, number of coats, primer coverage, porosity factor, and waste allowance.

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