Bedroom paint by size (walls, two coats)
| Bedroom | Wall sq ft | Gallons | Buy this | Cost |
|---|---|---|---|---|
| Small (10 × 10) | 270 | 1.54 | 2 gallons | $90 |
| Medium (12 × 12) | 334 | 1.91 | 2 gallons | $90 |
| Medium-large (12 × 14) | 366 | 2.09 | 2 gallons + 1 quart | $110 |
| Large (14 × 16) | 430 | 2.46 | 2 gallons + 2 quarts | $130 |
Sizes are examples, not averages. Each assumes 8 ft walls, one door (20 sq ft) and two windows (15 sq ft each), 350 sq ft per gallon.
Do not forget
- Ceiling: a 12 × 12 ft ceiling adds about 0.82 gallon for two coats.
- Closet: add it as a second room in the calculator.
- Trim: about a quart.
- Dark color: plan for a primer or a third coat.
Estimates only. Check your paint can’s label for coverage. Prices are typical 2026 US figures; use your store’s.