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How Much Paint for a 16×16 Room?

2.7gallons
for two coats on the walls (8 ft ceilings) — buy 3 gallons
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Wall area (8 ft ceilings, minus a door and window)≈ 472 sq ft
One coat, walls1.3 gallons
Two coats, walls (typical)2.7 gallons — buy 3
Ceiling, one coat0.7 gallons

The math: perimeter (64 ft) × 8 ft ceiling height − about 40 sq ft for a door and a window ≈ 472 sq ft of wall, at 350 sq ft per gallon per coat.

Taller ceilings, extra windows, or textured walls change the answer — use the calculator below for your exact room. Semi-gloss on trim is a separate (much smaller) quantity: a quart handles most rooms' trim.

Other room sizes

10×10 room10×12 room11×12 room12×12 room12×14 room12×16 room14×16 room15×15 room16×20 room20×20 room12×24 room
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