🎨 Paint Calculator
Calculate how many gallons of paint you need for any room, wall, or surface area project.
Room Dimensions
$
Gallons Needed
0 gal
Wall Area
0 ft²
Paintable Area
0 ft²
Ceiling Area
0 ft²
Estimated Cost
$0
Quarts Needed
0
Liters Needed
0
Paint Coverage Guide
| Paint Type | Coverage (sq ft/gal) |
|---|---|
| Standard interior latex | 350–400 |
| Flat / matte finish | 400–450 |
| Semi-gloss / gloss | 300–350 |
| Primer | 200–300 |
| Exterior paint | 300–400 |
Pro Tips
- Buy 10% more than calculated to account for touch-ups
- Darker colors going over lighter typically need 2–3 coats
- Porous surfaces (new drywall, bare wood) absorb more — use a primer first
- Keep the same batch number for consistent color throughout the room