Best Small Window Air Conditioners of 2026

Mark Greer Avatar
Mark Greer
Last Updated: Jan 13, 2026

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Small window air conditioners are a convenient and effective solution for cooling small spaces. Perfect for bedrooms, offices, or small apartments, these compact units fit easily into most standard-sized windows. With their adjustable temperature settings and powerful cooling capabilities, small window air conditioners provide efficient and reliable cooling during hot summer months. They are designed to be energy-efficient, ensuring you stay comfortable without breaking the bank. Easy to install and operate, these air conditioners offer a cost-effective way to beat the heat and create a comfortable living environment.

At a Glance: Our Top Picks

Amazon Basics Window-Mounted Air Conditioner Cover #TOP 1
Amazon Basics Window-Mounted Air Conditioner
ftb score rating icon 9.9
Midea 5,000 BTU EasyCool Window Air Conditioner Cover #TOP 2
Midea 5,000 BTU EasyCool Window Air Conditioner
ftb score rating icon 9.8
GE 5000 BTU Window Air Conditioner Cover #TOP 3
GE 5000 BTU Window Air Conditioner
ftb score rating icon 9.6

Top 10 Small Window Air Conditioners

Amazon Basics Window-Mounted Air Conditioner

Amazon Basics
MWHUK-05CMN8-BCK0
White
5000 BTU
Amazon Basics Window-Mounted Air Conditioner Cover
Amazon Basics 5000-BTU Small Window Air Conditioner, Up to 150 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Kit, Intuitive Mechanical Controls, White

The Amazon Basics Window-Mounted Air Conditioner is an energy efficient air conditioning unit that cools rooms up to 150 square feet with standard 9 foot ceilings. It features 7 temperature settings, dual cooling and fan settings, adjustable air direction, and an inbuilt filter that can be easily removed, washed, and reused. The window-mounting kit includes adjustable side panels that expand to fit standard windows.

What We Like
Easy installation process
Effective room cooling
Affordable price
Simple mechanical controls
Washable filter
#TOP 2

Midea 5,000 BTU EasyCool Window Air Conditioner

MAW05M1BWT
White
5,000 BTU
Midea 5,000 BTU EasyCool Window Air Conditioner Cover
Midea 5,000 BTU EasyCool Small Window Air Conditioner - Cool up to 150 Sq. Ft. with Easy-to-Use Mechanical Controls and Reusable Filter, Perfect for Small Bedroom, Living Room, Home Office

The Midea 5,000 BTU EasyCool Window Air Conditioner is perfect for smaller rooms, offering 7 temperature settings, 2 cooling/2 fan-only speeds, and 2-way air direction. It has a Combined Energy Efficiency Rate (CEER) of 11.0 and is quieter than a household refrigerator. Installation is easy and all mounting accessories are included. It is suitable for windows 23''-36'' wide and minimum 13'' high.

What We Like
Efficient heating and cooling
Quiet operation
Easy installation
Energy saving
Good air filtration
#TOP 3

GE 5000 BTU Window Air Conditioner

GE
AWAS05BWA
White
GE 5000 BTU Window Air Conditioner Cover
GE Window Air Conditioner Unit, 5,000 BTU for Small Rooms up to 150 sq ft. with Manual Adjustable Fan and Cooling Settings, Perfect for Small Bedroom or Living Room, Easy Install Kit Included, White

The GE 5000 BTU AC is designed to cool small rooms up to 150 square feet efficiently, making it perfect for bedrooms, home offices, or studio apartments. Its quiet operation ensures you can enjoy cool air without noise disturbance, ideal for a restful night's sleep. You can easily adjust the temperature with two cooling modes and two fan speeds, giving you control over your comfort. Plus, the included easy install kit makes setting up this unit in your window simple and hassle-free, so you can start cooling your space quickly and conveniently.

What We Like
Strong cooling performance
Easy installation
Lightweight design
Quiet operation
Affordable price
#TOP 4

Frigidaire 6,000 BTU Window AC

FHWC063TB1
White/Black
6,000 BTU
Frigidaire 6,000 BTU Window AC Cover
Frigidaire 6,000 BTU Window Air Conditioner & Dehumidifier, 115V, Cools up to 250 Sq. Ft. for Apartment, Dorm Room & Small/Medium Rooms, with Remote Control, Programmable Timer, and Sleep Mode, White

The Frigidaire Window Air Conditioner offers a powerful cooling solution for spaces up to 250 square feet. With its 6,000 BTU capacity, you can enjoy a comfortable environment during hot days. The unit features a washable dust filter that helps keep the air clean and alerts you when it needs maintenance. You can also program the timer to turn the AC on and off at your convenience, ensuring you always return to a cool room. Additionally, the sleep mode gradually adjusts the temperature for a restful night, enhancing your overall comfort.

What We Like
Effective cooling for small rooms
Easy-to-clean filter
Programmable timer
Quiet sleep mode

LG LW6024RSMX Window Air Conditioner

LG
LW6024RSMX
White
6,000 BTU
LG LW6024RSMX Window Air Conditioner Cover
LG 6000 BTU Window Air Conditioner[2024 New] Remote Control, WiFi Enabled works with LG ThinQ, Alexa, Hey Google, Washable Filer Ultra-Quiet Cools Small Room up to 250 Sq.Ft AC Unit White LW6024RSMX

The LG Window AC is perfect for small rooms up to 250 sq.ft. It comes with a user-friendly panel and remote control for easy operation from anywhere in the room. The installation is a breeze with the included EZ Mount kit, and the slide-out filter makes cleaning hassle-free. The washable dust filter ensures efficient dehumidification, while extra features like a remote control and Eco-friendly R32 refrigerant enhance the overall experience.

What We Like
Quiet Operation
User-Friendly Controls
Easy Installation

LG 5000 BTU Window Air Conditioners LW5023

LG
LW5023
White
5,000 BTU
LG 5000 BTU Window Air Conditioners LW5023 Cover
LG 5000 BTU Window Air Conditioners [2023 New] Easy Mechanical Control Ultra-Quiet Compact-size Cools Washable Filter 150 Sq.Ft. for Small Room AC Unit air conditioner Easy Installation White LW5023

LG Window AC LW5023 is perfect for small rooms, offering maximum cooling for up to 150 sq.ft. Enjoy the quiet operation with sound levels as low as 50dB. The mechanical controls make it easy to adjust settings. Installation is a breeze with the included kit, and the slide-out filter allows for easy cleaning every 30 days, ensuring optimal performance. The washable filter captures particles, maintaining efficient dehumidification, while the multiple fan speeds and energy-saving function provide customizable cooling and lower electricity bills.

What We Like
Fits small windows nicely
Very quiet operation
Simple installation
Effective cooling for small rooms
Good value for the price
#TOP 7

Frigidaire Window Air Conditioner FHWC063TC1

FHWC063TC1
White
Frigidaire Window Air Conditioner FHWC063TC1 Cover
Frigidaire 6,000 BTU Window Air Conditioner with Remote Control, Cools Up to 250 Sq. Ft., Quiet Operation, Eco Mode, 3 Fan Speeds, Auto Restart, White

The Frigidaire 6,000 BTU AC offers you a Multi-Speed Fan with three fan speeds, providing you with more cooling options. This window air conditioner by Frigidaire is designed to cool your space efficiently and effectively. With its electronic controls, you can easily adjust settings to suit your comfort needs. The white color adds a sleek touch to your room decor, blending in seamlessly. The Frigidaire 6,000 BTU AC is a reliable choice for keeping your room cool and comfortable during hot weather.

What We Like
Effective cooling for small spaces
Easy installation
Lightweight and manageable
Long power cord
Quiet operation
#TOP 8

GE 6000 BTU Window Air Conditioner

GE
AWCS06BWA
White
GE 6000 BTU Window Air Conditioner Cover
GE Window Air Conditioner Unit, 6,000 BTU for Small Rooms up to 250 sq ft. with Adjustable Fan and Cooling Settings, Perfect for Small Bedroom or Living Room, Easy Install Kit Included, White

The GE 6000 BTU AC is designed to cool small rooms up to 250 square feet, making it a great choice for bedrooms, offices, or studio apartments. You’ll appreciate its quiet operation, which keeps the air cool without disturbing your sleep or work. With three different cooling modes and fan speeds, you can easily adjust the settings to find the perfect temperature for your comfort. Plus, the easy install kit lets you set up the unit quickly in a double-hung window, so you can start enjoying cool air right away.

What We Like
Efficient cooling for small rooms
Quiet operation
Multiple cooling modes
Adjustable fan speeds
Easy installation
#TOP 9

LG 6000 BTU Window Conditioner

LG
LW6017R
White
6000 BTU
LG 6000 BTU Window Conditioner Cover
LG 6,000 BTU Window Air Conditioner, 115V, Cools 250 Sq.Ft. for Bedroom, Den, Living Room, Quiet Operation, with Remote, 2 Cooling & Fan Speeds, 2-Way Air Deflection, Auto Restart, White

The LG 6000 BTU Window Conditioner is a great choice for cooling medium-sized rooms up to 260 square feet. It operates at sound levels as low as 52dB in low mode, has 3 cooling and fan speeds, and an easy-to-use electronic control with remote. It also features an auto restart function that will turn the unit back on after a power failure. Customers have found it to be reliable and efficient, even in extreme heat.

What We Like
Quiet operation
Efficient cooling performance
Low energy costs
Easy installation
Good value for money
#TOP 10

Frigidaire FFRA051WAE Window-Mounted Room Air Conditioner

FFRA051WAE
White
Frigidaire FFRA051WAE Window-Mounted Room Air Conditioner Cover
Frigidaire 5,000 BTU Window-Mounted Air Conditioner, Cools Up to 150 Sq. Ft., Quiet Operation, Effortless Temperature Control, 2 Fan Speeds, Auto Restart, White

The Frigidaire FFRA051WAE Window-Mounted Room Air Conditioner is a 5,000 BTU air conditioner with temperature control and an easy-to-clean washable filter. It features an adjustable side panel design, a long power cord, and an effortless restart. It is compatible with a mounting bracket and side panel (sold separately). It is suitable for rooms up to 150 square feet, and has a noise level of 52 dB.

What We Like
Durable and long-lasting build
Efficient cooling performance
Easy installation and use
Good value for price
Effective humidity control
Buying Guide Image

Choosing the Best Small Window Air Conditioners to Build Your Dream Home

Power

The first factor to consider before investing in lightweight window air conditioners is the power of the appliance. The power of the air conditioner will determine the cooling capacity. And, as we have seen, this power is measured in BTU (British thermal unit).

As we have seen, compared to other types of air conditioners, the window is capped at up to 30,000 BTUs. But you can also find devices that have low power, 7,000 BTUs, for example.

The power of the air conditioner depends on several factors, such as the area of the room, the number of windows that allow sunlight, and the number of people who frequent the space. To give you an idea, experts point out that in homes, the use of window air conditioners with a power rating ranging from 9,000 to 18,000 BTUs is recommended.

However, a good average is considering between 600-800 BTUs per square meter. So, in a 15-meter square room, for example, a product of at least 9,000 BTUs must be installed. 20,000 BTU window air conditioners are perfect for areas up to 35-meter square.

Dimension

We recommend that you take into consideration the size of the product. This info is important both for hole-in-the-wall measurements and for aesthetic reasons. In general, the height of the device will vary between 30 and 47 cm. The width, on the other hand, can vary between 30 and 66 cm depending on the model. Make sure it is lightweight.

The size of the window air conditioner should be following the fixing space and the size of the room. As for the depth, you can find devices that measure between 40 and 80 cm. Remember that the size of the space where the window air conditioner will be installed will have to be a few more centimeters to accommodate the support grids.

Speed

Another factor to check before purchasing your window air conditioner is the amount of speed available. The speed of the air conditioner will determine the force with which the cooled air will blow out of the unit.

In general, you can choose models that offer two or more speed options. The most common are high and low speeds. But here you can also choose models that still have ventilation mode, which has a different speed.

Airflow

Airflow is another factor that we recommend you consider when choosing the best window air conditioner. Did you know that depending on the model you choose, you can find those that can be directed the air in up to six different directions? Some models also have an air renewal system, which allows the exchange of air to dissipate smoke and odors from the environment.

Frequently Asked Questions (FAQs)

1. What is the smallest window size air conditioner?

There are several small window air conditioners available in the market, such as the FRIGIDAIRE 5,000 BTU Mini-Compact, FRIGIDAIRE Energy Star 6,000 BTU, Midea U Inverter Window Air Conditioner, Haier Serenity Series 6,000 BTU, Arctic King WWK05CM91N, Whirlpool 5,000 BTU, and LG LW6017R 6,000 BTU. These models are compact and suitable for smaller windows.

2. Do they make air conditioners for very small windows?

Yes, there are air conditioners designed to fit very small windows. For example, the Midea 5,000 BTU EasyCool Window Air Conditioner is specifically designed to fit windows with vertical openings as small as 13 inches and as wide as 16 inches. Its compact size makes it ideal for small windows.

3. What is the smallest BTU window air conditioner you can buy?

Window air conditioners come in various BTU sizes, but the smallest ones available are typically 5,000 BTU units. These compact units are suitable for smaller spaces and windows where a larger air conditioner may not fit.

4. Is 5000 BTU the smallest window air conditioner?

Yes, the MIDEA MAW05M1BWT is one of the smallest window air conditioners available, with 5000 BTU of cooling capacity. It has a compact design with dimensions of approximately 16 inches in length, 15-1/2 inches wide, and 12-1/4 inches in height.

5. Is there such thing as a small air conditioner?

Yes, there are small air conditioners available, known as portable air conditioners (PACs). These units are designed to cool a single room without the need for complex installation. Portable air conditioners are a cost-effective cooling solution and often come with features like built-in timers for energy efficiency.

6. How do you make a window air conditioner fit a small window?

To make a window air conditioner fit a small window, you can use foam tape to cover the gaps between the AC unit and the window. Most AC units come with foam tape, but you can purchase additional rolls if needed. Another option is to install the AC with one curtain mostly collapsed to reduce the width.

7. Do these small air conditioners work?

Portable air conditioners, while not as effective as window AC units, provide a cooling solution for single rooms. They are better than fans but may not cool as efficiently as window ACs. It is recommended to consider the size of the room and the BTU rating of the portable AC to ensure effective cooling.

8. Is 8000 BTU too much for a small room?

For a small room, a 5,000 to 6,000 BTU air conditioner is generally sufficient. An 8,000 BTU unit is more suitable for medium-size rooms measuring around 340 square feet. It is important to choose an air conditioner with the correct BTU rating to ensure optimal cooling efficiency for the room size.

9. What will a 5000 BTU air conditioner cool?

A 5,000 to 6,000 BTU air conditioner is suitable for cooling an area between 100 and 300 square feet. If the room is larger, you may need a higher BTU rating. For example, 7,000 to 8,200 BTU units are adequate for cooling 250 to 550 square feet, while 9,800 to 12,500 BTU units can cool up to 950 square feet.

Editor's Notes

During our small window air conditioner research, we found 24 small window air conditioner products and shortlisted 10 quality products. We collected and analyzed 422,236 customer reviews through our big data system to write the small window air conditioners list. We found that most customers choose small window air conditioners with an average price of $164.41.

The small window air conditioners are available for purchase. We have researched hundreds of brands and picked the top brands of small window air conditioners, including Midea, GE, Frigidaire, LG. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Mark Greer Avatar

Mark Greer has been an excellent residential carpenter for eight years in Los Angeles and has complete knowledge of woodworking, power tools, and home DIY. He never misses a chance of the lookout for new features and innovations in popular and novel home appliances as an insightful writer.