Ceiling Paint Calculator
Calculate paint needed for ceilings by area, number of coats, and ceiling paint coverage rate.
Formula & Explanation
Ceiling paint calculation is similar to wall paint, but ceiling paint typically has lower coverage due to overhead application difficulty and drying conditions. Formula: Gallons = (Ceiling area × Number of coats) ÷ Coverage per gallon Example: 200 sqft × 1 coat ÷ 350 sqft/gal = 0.57 gallons → purchase 1 gallon can Key difference: Ceiling paint coverage is typically 300-350 sqft/gallon (vs. 350-400 for walls) because paint is applied against gravity and may drip, requiring careful technique.
Assumptions
- •Ceiling paint coverage: 300-350 sqft/gallon (lower than wall paint due to overhead application)
- •Flat white ceiling paint is standard; colored ceilings are less common
- •One coat is typical for white ceilings or refresh; two coats for color changes
- •Assumes smooth drywall or popcorn ceiling; popcorn ceilings may need 25-50% less paint (less coverage required)
- •Includes standard drying time of 1 hour for latex ceiling paint between coats
- •Trim and crown molding are not included
- •Assumes normal interior conditions (temperature 60-75°F, normal humidity)
Example Calculation
200 square feet of ceiling painted with one coat at 350 sqft/gallon coverage requires 0.57 gallons, round up to 1 gallon can. Typical latex paint drying time is 1 hour.
Inputs
Results
Ceiling Paint Types and Coverage
| type | coverage | dryTime | notes |
|---|---|---|---|
| Flat white latex | 300-350 sqft/gal | 1 hour | Most common; hides imperfections |
| Semi-gloss white | 300-350 sqft/gal | 2-4 hours | Washable; for moisture-prone areas |
| Textured ceiling paint | 250-300 sqft/gal | 1-2 hours | Covers uneven surfaces |
| Primer (ceiling) | 250-300 sqft/gal | 1 hour | For bare drywall or stains |
Frequently Asked Questions
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