12 × 12 ft room: the short answer
With 8 ft walls, a 12 × 12 ft room has about 384 sq ft of wall. For 2 coats that's roughly 2.2 gallons — the smart buy is 2 gal + 1 qt.
Room size
Paint for a 12 × 12 ft room
A 12 × 12 ft room with 8 ft walls has about 384 sq ft to paint. For 2 coats that's about 2.2 gallons — buy 2 gal + 1 qt. Adjust coats, openings, or the ceiling below.
Paint needed
—Enter a room size to estimate paint.
| Paintable area | — |
|---|---|
| Paint (with coats) | — |
| Smart buy | — |
| Estimated cost | — |
Estimate only.
Coverage is about 350 sq ft per gallon per coat for most interior paint — check the can.
Bare drywall, patches, and big colour changes soak up more, so prime first and consider an
extra coat.
Adjust for your room
Subtract big windows and doors, add the ceiling if you're painting it, and bump to three coats for a strong colour change. Prime bare or patched walls first so two coats is enough.
Coverage ≈ 350 sq ft/gal at 8 ft walls, 2 coats. Estimates only.
FAQ
How much paint for a 12 × 12 ft room?
With 8 ft walls, a 12 × 12 ft room is about 384 sq ft. For 2 coats you need roughly 2.2 gallons — the smart buy is 2 gal + 1 qt. Subtract doors and windows in the calculator for a tighter number.
How many gallons to paint a 12 × 12 ft room?
About 2.2 gallons for 2 coats at 350 sq ft per gallon. If you're painting the ceiling too, tick that option — it adds the room's footprint to the area.
Estimate only, based on standard coverage at 8 ft walls and 2 coats. Coverage varies with paint, surface, and colour change. Prime bare or patched walls before painting.