How much paint should I buy?

Find out how much paint you need to buy for your painting project

How much paint should I buy?

How much paint should I buy?

Q: How much paint should I buy?

A: Finding out how much paint you need to buy depends on the room you are painting, the number of doors and windows, and the type of paint you're going to use. To find out how much paint you need for your next painting project plase use the paint calculator below.


STEP 1 of 4

Start by telling us how big your room is:

Select the general size and dimensions to your room

(don't worry about being exact)


Up to 8 ft by 10 ft.


Up to 14 ft by 14 ft.


Up to 18 ft by 18 ft.

Extra Large

Up to 22 ft by 22 ft.

How Tall are your Ceilings

Select the option closest to your room's ceiling height


Under 10 ft.


Between 10 ft abd 14 ft.

Double High

Over 14 ft.

Almost Done! Please Give us a few Details

Please provide the number of windows and doors in your room and let us know if you have dark walls.

Are you changing the color of your walls

Drastic color changes typically require a second coat of paint.





We recommend

1 of paint for 1 on 100 sq. ft.

1 gallon of paint will cover up to 400 sq. ft. (372 sq. meters) per U.S. gallon (3.78 Liters) on primed, smooth, nonporous surfaces. Coverage figures do not include material loss due to application. Some colors, drastic color changes, or porous surfaces may require more than one coat to achieve uniform finish.

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