How Much Paint for a 12x14 Room?
Paint needed
2.25 gallons
A 12 by 14 room with eight foot walls, one door, two windows, two coats.
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How that number is worked out
These are the figures this page was built with and every line the calculator produces from them. Change anything above and all of it moves.
- Room perimeter, add all walls52 ft
- Wall height8 ft
- Doors1
- Windows2
- Coats2
- Coverage per gallon350 sq ft
Paint needed2.25 gallons
| Gross wall area | 416 sq ft |
|---|---|
| Less doors and windows | -51 sq ft |
| Net wall area | 365 sq ft |
| Area over 2 coats | 730 sq ft |
| Gallons, exact | 2.09 |
| Buy | 3 gallonsor 1 five gallon pail |
The material list this produces
| Paint, gallons | 3 |
|---|---|
| Primer, gallons (if bare or color change) | 2 |
| Painter's tape, rolls | 1 |
Coats compared
Same room, one coat to three.
| Coats | Paint needed |
|---|---|
| 1 coat | 1.25 gallons |
| 2 coats | 2.25 gallons |
| 3 coats | 3.25 gallons |
What else matters here
Just over two gallons, so the calculator says buy three. Two gallons would leave about 30 square feet of the last coat unpainted, and the leftover from the third is the repair kit for later touch ups.
What this calculator assumes
- A door is taken as 21 sq ft and a window as 15 sq ft. Deducting them matters on a small room and barely moves a big one.
- 350 sq ft per gallon is the usual figure on a smooth primed wall. Bare drywall, textured walls and deep color changes all drink more, so drop it to 300 if any of those apply.
- Ceilings and trim are not included. Run the ceiling as its own area.
Questions people ask
How much paint for a 12x14 room?
About 2.09 gallons for two coats on eight foot walls, so the calculator rounds up to three gallons.
The paint calculator takes any dimensions you like and hands back the same list.