What is typical paint coverage?
Interior latex: 350 sq ft/gallon. Primer: 300 sq ft/gallon. Exterior paint: 250 sq ft/gallon on porous siding. Always use the number on your product.
Paint Coverage Calculator
Coverage depends on your paint label, surface texture, and number of coats. Enter the sq ft per gallon from your can for an accurate gallon count.
Rooms
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Project settings
Default 10% for touch-ups
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Frequently asked questions
Why does my paint cover less than the label?
Textured walls, dark colors, unprimed surfaces, and rolling vs spraying all reduce coverage. Add 10% waste for touch-ups and roller absorption.
Should I buy quarts or gallons?
The calculator shows both. Small accent walls or closets may only need quarts. Whole rooms usually need at least one gallon — we round up for store quantities.
Paint Calculator · https://paint-calculator.ca