Paint for a 9×13 room
1.7 gallons (buy 2 gal)
for two coats on 301 sq ft of wall: 8 ft ceilings, one door, two windows, 350 sq ft per gallon.
Paint for a 9×13 room by ceiling height
| Ceiling height | Wall area | 1 coat | 2 coats |
|---|---|---|---|
| 8 ft | 301 sq ft | 0.9 gal | 1.7 gal |
| 9 ft | 345 sq ft | 1 gal | 2 gal |
| 10 ft | 389 sq ft | 1.1 gal | 2.2 gal |
| 12 ft | 477 sq ft | 1.4 gal | 2.7 gal |
Wall area subtracts one door (21 sq ft) and two windows (15 sq ft each). Ceiling: 117 sq ft, 0.33 gal per coat.
How it’s worked out
- Perimeter: 2 × (13 + 9) = 44 ft.
- Wall area: 44 × 8 ft = 352 sq ft, minus 21 for the door and 30 for the windows = 301 sq ft.
- Two coats: 301 × 2 ÷ 350 = 1.72 gallons.
Change the numbers
Other room sizes
- 9×12 room
- 9×14 room
- 8×13 room
- 10×13 room
- 9×11 room
- 9×15 room
- 11×13 room
- 9×10 room
- 9×16 room
- 9×9 room
- 12×13 room
- 8×9 room
Questions
- How much paint do I need for a 9×13 room?
- About 1.7 gallons for two coats on the walls of a 9×13 room with 8 ft ceilings, one door and two windows: buy 2 gal. The ceiling takes another 0.3 gallons per coat.
- How many square feet of wall is a 9×13 room?
- 352 sq ft of wall with 8 ft ceilings, or about 301 sq ft after one door and two windows.
- How much does it cost to paint a 9×13 room?
- Paint for the walls costs about $80 at $40 a gallon. Professional painters typically charge $2 to $6 per square foot of floor area, about $234 to $702 here.