Question 1

How many square feet does a gallon of paint cover?

Accepted Answer

A standard gallon of interior paint covers approximately 350-400 square feet with one coat. This varies by paint quality, surface texture, and color. Dark colors over light surfaces may need additional coats.

Question 2

How do I account for doors and windows?

Accepted Answer

A standard door is about 21 square feet and a standard window is about 15 square feet. Our calculator subtracts these from the total wall area to give you an accurate estimate.

Question 3

How many coats of paint do I need?

Accepted Answer

Most projects need 2 coats for even coverage. You may only need 1 coat if painting a similar color. Use 3 coats when covering a dramatically different color or painting over dark walls with a light color.

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