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What Size AC for 1500 Sq Ft? (Read This First!)

Are you looking for advice on what size AC unit to buy for your 1500 sq ft home? Here’s what you need! Let’s take a look at different air conditioning unit sizes. Additionally, we will provide you with a handy calculation tool to help you determine the right size. Here are some things you should know about air conditioners, whether you’re buying one or just curious!

Ac size for 1500 sq ft:

For 1500 square feet, it is recommended to have 30,000 BTU of cooling. A general rule of thumb is 20 BTUs per square foot. For a 1500-square-foot area, you will need at least 2.5 tons of air conditioning. During the hottest summer days, this will provide adequate cooling.

There is a lot of space required for an AC unit. In addition to taking up space in your home, an AC unit also consumes electricity and can be quite costly to operate. Therefore, you should size your AC unit based on the square footage of your home and the type of cooling you need.

Home cooling capacity should be 30,000 BTUs for a 1500-square foot structure. When temperatures reach 100 degrees Fahrenheit during summer days, this size AC unit will provide adequate cooling.

Buying an AC unit with a higher cooling capacity is recommended if you live in a hotter climate. You may want to consider buying an AC unit with 50,000 BTU if your home experiences summer temperatures of 120 degrees Fahrenheit or higher. During peak heating hours, this will provide adequate cooling for your home.

How do I calculate what size air conditioner I need?

Calculating the size of an air conditioner can be a complicated task, but you should do your research to get the best deal. Aside from the square footage of your home, you will need to consider the type of heating system and the number of windows and doors in your house.

Additionally, when choosing an AC unit, consideration should be given to climate conditions (e.g., high humidity), day/night time usage (e.g., TV watching during the day versus appliance use at night), pets, and holidays.

It is recommended to have 20 BTU of air conditioning per square foot in general weather conditions. It is simple to calculate the square footage of a room by multiplying 20 by its square footage. Using the following formula, you can determine the size of air conditioner that you will need based on the size of your home:

BTU= (20*square foot)

In addition, it is possible to convert BTUs to tons as well. The BTU can be calculated by multiplying it by 12,000 and that is all there is to it. As a convenience to you, here is the formula that you can use.

Ton(s)= BTU/12000

What type of Air Conditioner is best for a 1500 sq ft space?

Depending on the climate and overall needs of the home, the best air conditioner for 1500 square feet will vary. These are some of the best options that you can choose for your 1500-square foot room.

Smart Air Conditioner:

An air conditioner of this type is ideal for homes or apartments with 1500 square feet. You can mount it on the wall or place it on the floor because it has a compact design. However, it doesn’t have as much cooling power as some of the other options, so you may have to replace it more often.

Window A/C Unit:

With the Window A/C Unit option, there is no need to fit an AC unit between the window and door frame in homes with smaller windows. If you have a room of 1500 square feet in size, you can use a window air conditioner. During peak weather conditions, you will need to open your windows to use this type of air conditioner.

Room AC Unit:

Larger homes with more than 1500 square feet are most likely to benefit from a room air conditioner. An integrated compressor makes it possible to mount it on a wall or place it on the ground. Compared to a window A/C unit, it will take up less space, but it may not be as powerful.

2.5-ton AC:

The 2.5-ton air conditioner will provide adequate cooling for 1500 homes without a doubt. In terms of price, this model is typically between $1200 and $2200, which makes it a middle-range model.

Things to consider before choosing an AC size for a 1500 sq ft home:

When choosing an AC size for a 1500 sq ft home, you’ll need to consider the climate you live in, your occupancy rate, and your budget. The climate will determine which type of air conditioning unit is required when selecting an AC size. Here are the most important things to consider.


Your cooling needs will be more intense the higher the density of your building. In buildings with a high density, there are usually more people and more windows/doorways, so they need an air conditioning unit that can operate more quickly. For buildings over 2000 square feet, a 2-ton AC is usually recommended.


Each climate is different, so you should also choose an AC size based on the climate where you live. It’s helpful to consult our weather station or thermostat before purchasing to determine what size AC unit is needed.

Seasonal Heat Gain & Cooling Capacity:

The greater the seasonal heat gain, the greater your cooling needs will be during summer and winter. You can usually find this information on your weather station or thermostat, so keep it in mind when choosing an air conditioner. In a 1500-square foot room with high temperatures, you’ll need more than 2.5 tons of air conditioning.

Room type:

Additionally, you should consider the type of room you are cooling when choosing an AC size. Home has three main types of rooms:


This is the room where people sleep and spend most of their time, so it is the room that is the most intensely cooled. During the summer and winter months, your bedroom needs a high-capacity air conditioner, so ensure you consult your weather station or thermostat before making a purchase.

Family Room:

As a general rule, the family room is usually smaller and has fewer people in it than the living room. It is generally used to watch television or to play video games, among other things. The summer doesn’t require as much cooling power, but in the winter, when the temperature can drop below freezing, it does need quite a lot of cooling power.


In a home, the kitchen is usually the hottest room and needs the most cooling during hot summer days because it is the warmest. In most cases, the air conditioning unit that will be installed in the kitchen will have a high cooling capacity, meaning that you will be able to quickly cool down the entire area.

Air Conditioner Cost for 1500 sq ft:

An air conditioning unit for a 1500 sq ft room typically costs between $1,500 and $2,500. For an accurate estimate of the cost for your home, consult your local authorized dealer or energy supplier.

AC price:

For a 1500-square foot room, the average cost of an AC unit is between $1,200 and $2,500, depending on the size and type of room. You may also need to factor in the cost of installation if you do not purchase your AC unit from an authorized dealer.

Running cost:

The running cost of your air conditioning unit will vary depending on the climate in your area, how often you use it, and the type you purchase. A 2.5-ton AC unit produces 30,000 BTU of cooling power. You can see that 2.5-ton central and mini-split air conditioners consume between 1,200 and 2,143 watts. An hourly rate of $0.36 is what you will have to pay.

Air conditioning costs vary depending on where you live, the climate, and whether you choose to have it installed in your home or pay for it as part of your utility bill.

Final thoughts

You will need 30,000 BTUs or 2.5 tons of air conditioning for 1500 Sq ft. The BTU can be calculated by multiplying 20 by the square foot. The cost of an AC of this size is $0.36 per hour. Consider seasonal heat gain, cooling capacity, room type, and density before purchasing an air conditioner.