Room paint quantity estimator

Estimate gallons from room size, coats, and openings.

How to read the result

Buy from the coverage printed on the can. Until then, the tool shows the arithmetic with a stand-in coverage number.

Default coverage is 350 square feet per gallon per coat. Each door subtracts 20 square feet and each window subtracts 15.

Replace 350 with the number on your can. Texture and color changes need more paint than a smooth repaint.

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