Room Paint Calculator
Calculate paint needed for a specific room
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ft
ft
Formula
Gallons = (Wall Area × 0.85 × Coats) / 350
Subtract ~15% for doors/windows; 1 gallon covers ~350 sq ft.
Examples
15×12 room, 2 coats
~3 gallons.
Frequently Asked Questions
About Room Paint
Calculate paint needed for a specific room.