Light green bedroom

How Much Paint Do I Need?

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

Light green bedroom

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?

Calculate how much paint you will need for your next painting project by following the steps below. Start by measuring the height and width of each wall you intend to paint, ensuring that both values are provided in a numeric format for accuracy. Don’t forget to account for the number of windows and doors within those measurements, as these areas won’t require paint, and adjusting for them will help you avoid buying excessive amounts. Once you have these measurements, use our reliable paint calculator below to determine the exact amount of paint needed. This will save you time and money by preventing extra trips to the store and ensuring you don’t over-purchase paint.

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How Much Paint Do I Need?

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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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.



find a paint store near you


One gallon can of paint will cover up to 400 square feet, which is enough to cover a small room like a bathroom. This coverage can slightly vary depending on the type of paint and the surface texture of the walls. For instance, highly textured surfaces might absorb more paint, thus requiring a bit more than the smooth ones. To ensure optimal coverage and to avoid shortcomings, it's always a good idea to purchase a little extra paint than calculated. If you are planning to apply multiple coats, double the needed amount to accommodate for the additional layers. Knowing these factors in advance helps in accurate planning and ensures a smooth painting process, without the interruption of last-minute store trips.


Find The Right Paint for Your Project

How to calculate amount of paint

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. This coverage can slightly vary depending on the type of paint and the surface texture of the walls. For instance, highly textured surfaces might absorb more paint, thus requiring a bit more than the smooth ones. To ensure optimal coverage and to avoid shortcomings, it's always a good idea to purchase a little extra paint than calculated. If you are planning to apply multiple coats, double the needed amount to accommodate for the additional layers. Knowing these factors in advance helps in accurate planning and ensures a smooth painting process, without the interruption of last-minute store trips.


Find The Right Paint for Your Project


When selecting paint for your room, it's essential to consider how different types of paint can impact the amount needed for your project. Various paint finishes, such as matte, satin, or gloss, have distinct application requirements and coverage capabilities. For example, high-gloss paints may provide more coverage per gallon compared to flat paints, which are often more absorbent. 

Additionally, specialty paints, such as those designed for high-moisture areas or those with primer mixed in, may also affect your calculations. Primer-infused paints, though convenient, may require fewer coats, effectively reducing the overall amount of paint needed. Understanding these nuances and tailoring your purchase accordingly can ensure you have just the right quantity, avoiding surplus or shortages. By factoring in the specific requirements of different paint types, you can optimize your painting project for both quality and efficiency.


Find The Right Paint Per Square Foot
Rolling paint on a wall

Find The Right Paint Per Square Foot


When selecting paint for your room, it's essential to consider how different types of paint can impact the amount needed for your project. Various paint finishes, such as matte, satin, or gloss, have distinct application requirements and coverage capabilities. For example, high-gloss paints may provide more coverage per gallon compared to flat paints, which are often more absorbent. 

Additionally, specialty paints, such as those designed for high-moisture areas or those with primer mixed in, may also affect your calculations. Primer-infused paints, though convenient, may require fewer coats, effectively reducing the overall amount of paint needed. Understanding these nuances and tailoring your purchase accordingly can ensure you have just the right quantity, avoiding surplus or shortages. By factoring in the specific requirements of different paint types, you can optimize your painting project for both quality and efficiency.


Find The Right Paint Per Square Foot