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Gallons to buy
3 gal
About 3 gallons, rounded up to whole cans.
Exact gallons needed
2.29 gal
Estimated paint cost
$120.00
Rough estimate, not a guarantee. Actual costs vary by supplier, location and project.
Estimate only. Not 100% accurate or guaranteed. Rough estimate, not a guarantee and not financial advice. Actual costs vary by supplier, location and project. Check local prices, product labels and your own measurements before you buy, and get quotes or check with a qualified pro for structural, electrical or permitted work.
Material quantities and prices are rough estimates, not a guarantee and not financial advice. Check product labels, local codes and your own measurements before you buy.
How it works
Paint coverage is printed on the can. Textured or porous walls and big color changes use more.
We round up to whole gallons because that is how paint is usually sold.
The formula
Gallons = ⌈wall area × coats ÷ coverage per gallon⌉
Cost = gallons × price per gallon
How to use this calculator
Measure wall area.
Choose the number of coats.
Enter the coverage from your can label.
Enter your local price.
Frequently asked questions
Do I subtract windows and doors?
Subtract large openings. Small ones usually aren't worth subtracting, since the extra covers touch-ups.