How Much Paint Do I Need?

Find out exactly how much paint you need for the job.

How Much Paint Do I Need?

How Much Paint Do I Need?

One of the most typical questions regarding paint is, “How much paint do I need?” Use the paint calculator below and our custom video tips to find out exactly how much paint you need for your next painting project.

How Much Paint Do I Need?

Calculator how much paint you will need for your next painting project by following the steps below.

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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)

Small

Up to 8 ft by 10 ft.

Medium

Up to 14 ft by 14 ft.

Large

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

Standard

Under 10 ft.

High

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.

Yes

No

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RESULT
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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Rule-of-thumb

How Much Paint Do I Need?

Rule-of-thumb

With some simple calculations, you will know how much paint to buy so you don’t need to waste time with extra trips to the store, and you won’t over-spend on too much paint.

The typical rule-of-thumb is one gallon for about every three to four hundred square feet. However, some paint formulas and wall textures may require more specific amounts.

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How Much Paint Per Square Foot?

How Much Paint Do I Need?

How Much Paint Per Square Foot?

  • One gallon can of paint will cover up to 400 square feet, which is enough to cover a small room like a bathroom.

  • Two gallon cans of paint cover up to 800 square feet, which is enough to cover an average size room. This is the most common amount needed, especially when considering second coat coverage.

  • Three gallon cans of paint cover up to 1200 square feet. This is enough to cover a large room or a couple of average-sized rooms adjoining each other. You may want to consider this extra can if you are doing a room with vaulted ceilings. 

  • Four gallon cans of paint cover up to 1600 square feet, which is enough to cover several average rooms. You might consider this amount if you have a great room or some other very large room.


Find The Right Paint for Your Project

Use the right tools

How Much Paint Do I Need?

Use the right tools

The right roller helps to provide the correct coverage needed, and better looking results. The typical size needed is a 9-inch roller with a 3/8-inch inch nap for smooth walls, or a 1/2-inch nap for textured walls.

To avoid leaving any visible roller lines, continue your final stroke all the way down the wall. Don't be afraid to be generous with the paint, you want to completely cover your wall, in order to avoid future touch-ups. 


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