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Sizing Air Conditioner

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Best Buy customers often prefer the following products when searching for Sizing Air Conditioner.

When you're sizing air conditioner systems, you're looking at the amount of energy a unit uses to cool down a certain size of space. Larger rooms typically require more energy consumption, and vice versa. If you're looking for energy efficient units, consider these air conditioners. Browse the top-ranked list of air conditioners below along with associated reviews and opinions.

Main Results
  1. LG - 18,000 BTU 230V Window Air Conditioner - White - Front_Zoom
    Top comment

    "Great size...I can’t wait to use this product more regularly! It’s perfect size for my master bedroom and will cut cost with my gas and electric bill! "

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    Product Description

    For optimal cooling performance, choose the LG LW1824RD air conditioner, designed to cool medium to large rooms up to 1,000 sq. ft. Enjoy the flexibility of 3 cooling and fan speeds along with a convenient 24-hour timer to personalize your cooling schedule. With a 4-way air deflection feature, you can direct airflow precisely where needed for efficient cooling, dehumidifying, or air circulation. Experience uninterrupted comfort during power outages thanks to the auto restart function, while additional features like a remote control, easy window installation kit, washable filter, and filter alert enhance user convenience. (Please note: Requires a special 230V electrical outlet)
    See all Window Air Conditioners
    Top comment

    "Great size...I can’t wait to use this product more regularly! It’s perfect size for my master bedroom and will cut cost with my gas and electric bill! "

    See all customer reviews

    Product Description

    For optimal cooling performance, choose the LG LW1824RD air conditioner, designed to cool medium to large rooms up to 1,000 sq. ft. Enjoy the flexibility of 3 cooling and fan speeds along with a convenient 24-hour timer to personalize your cooling schedule. With a 4-way air deflection feature, you can direct airflow precisely where needed for efficient cooling, dehumidifying, or air circulation. Experience uninterrupted comfort during power outages thanks to the auto restart function, while additional features like a remote control, easy window installation kit, washable filter, and filter alert enhance user convenience. (Please note: Requires a special 230V electrical outlet)
    See all Window Air Conditioners
    Your price for this item is $579.99
    See all Window Air Conditioners
  2. Hisense - 350 sq. ft. 8,000 BTU Smart Window Inverter Air Conditioner with Wi-fi and Remote Control - White - Front_Zoom

    Product Description

    This window air conditioner, best suited for medium sized rooms up to 350 square feet, with 8,000 BTUs of cooling power, provides more efficient and easier to use features whenever you need to stay cool. Inverter technology saves energy and maintains stable temperatures at the desired level by varying the rotation speed of the compressor, making it run quieter as well. Three different modes provide comfort, from cool mode when it's hot, to fan mode for better ventilation. There is even a dry mode to remove excess moisture on extra humid days. The control panel and remote control are simple and intuitive while the unit's Wi-fi capability allows you to adjust your settings from anywhere at anytime by simply using the ConnectLife app on your mobile device. The maintenance is simple thanks to the washable and removable air filter and the 2 year warranty gives you peace of mind while you relax and enjoy the cool.
    See all Window Air Conditioners

    Product Description

    This window air conditioner, best suited for medium sized rooms up to 350 square feet, with 8,000 BTUs of cooling power, provides more efficient and easier to use features whenever you need to stay cool. Inverter technology saves energy and maintains stable temperatures at the desired level by varying the rotation speed of the compressor, making it run quieter as well. Three different modes provide comfort, from cool mode when it's hot, to fan mode for better ventilation. There is even a dry mode to remove excess moisture on extra humid days. The control panel and remote control are simple and intuitive while the unit's Wi-fi capability allows you to adjust your settings from anywhere at anytime by simply using the ConnectLife app on your mobile device. The maintenance is simple thanks to the washable and removable air filter and the 2 year warranty gives you peace of mind while you relax and enjoy the cool.
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    Your price for this item is $374.99
    Save $5
    The comparable value price is $379.99
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  3. Hisense - 5,000 BTU 150 Sq. Ft. Window Air Conditioner - White - Front_Zoom

    Product Description

    This window air conditioner, best suited for small sized rooms up to 150 square feet, with 5,000 BTUs of cooling power, provides more efficient and easier to use features whenever you need to stay cool. Two different modes provide comfort, from cool mode when it's hot, to fan mode for better ventilation. The control panel is simple and intuitive so you can easily adjust the settings to your liking with the mechanical rotary controls. Two cooling and fan speeds along with 2-way adjustable air louvers let you direct your optimal air flow while a temperature range of 61 to 86 degrees Fahrenheit allow you to customize your cooling. With the included window installation kit, the air conditioner can be easily installed and uninstalled in the room of your choice as needed as the seasons change. The maintenance is simple thanks to the washable and removable air filter and the 2 year warranty gives you peace of mind while you relax and enjoy the cool.
    See all Window Air Conditioners

    Product Description

    This window air conditioner, best suited for small sized rooms up to 150 square feet, with 5,000 BTUs of cooling power, provides more efficient and easier to use features whenever you need to stay cool. Two different modes provide comfort, from cool mode when it's hot, to fan mode for better ventilation. The control panel is simple and intuitive so you can easily adjust the settings to your liking with the mechanical rotary controls. Two cooling and fan speeds along with 2-way adjustable air louvers let you direct your optimal air flow while a temperature range of 61 to 86 degrees Fahrenheit allow you to customize your cooling. With the included window installation kit, the air conditioner can be easily installed and uninstalled in the room of your choice as needed as the seasons change. The maintenance is simple thanks to the washable and removable air filter and the 2 year warranty gives you peace of mind while you relax and enjoy the cool.
    See all Window Air Conditioners
    Your price for this item is $189.99
    See all Window Air Conditioners
  4. Hisense - 10,000 BTU Smart Portable Inverter Air Conditioner with Wi-fi and Remote Control - Black - Alt_View_Zoom_14

    Product Description

    This portable inverter air conditioner, best suited for medium sized rooms up to 550 square feet, with 10,000 BTUs of cooling power, provides more efficient and easier to use features whenever you need to stay cool. Inverter technology saves energy and maintains stable temperatures at the desired level by varying the rotation speed of the compressor, making it run quieter as well. Three different modes provide comfort, from cool mode when it's hot, to fan mode for better ventilation. There is even a dry mode to remove excess moisture on extra humid days. The control panel and remote control are simple and intuitive while the unit's Wi-fi capability allows you to adjust your settings from anywhere at anytime by simply using the ConnectLife app on your mobile device. The maintenance is simple thanks to the washable and removable air filter and the 2 year warranty gives you peace of mind while you relax and enjoy the cool.
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    Product Description

    This portable inverter air conditioner, best suited for medium sized rooms up to 550 square feet, with 10,000 BTUs of cooling power, provides more efficient and easier to use features whenever you need to stay cool. Inverter technology saves energy and maintains stable temperatures at the desired level by varying the rotation speed of the compressor, making it run quieter as well. Three different modes provide comfort, from cool mode when it's hot, to fan mode for better ventilation. There is even a dry mode to remove excess moisture on extra humid days. The control panel and remote control are simple and intuitive while the unit's Wi-fi capability allows you to adjust your settings from anywhere at anytime by simply using the ConnectLife app on your mobile device. The maintenance is simple thanks to the washable and removable air filter and the 2 year warranty gives you peace of mind while you relax and enjoy the cool.
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    Your price for this item is $548.99
    Save $51
    The comparable value price is $599.99
    See all Portable Air Conditioners
  5. Hisense - 8,000 BTU 350 Sq. Ft. Smart Window Air Conditioner with Wi-fi and Remote Control - White - Front_Zoom

    Product Description

    This window air conditioner, best suited for medium sized rooms up to 350 square feet, with 8,000 BTUs of cooling power, provides more efficient and easier to use features whenever you need to stay cool. Three different modes provide comfort, from cool mode when it's hot, to fan mode for better ventilation. There is even a dry mode to remove excess moisture on extra humid days. The control panel and remote control are simple and intuitive while the unit's Wi-fi capability allows you to adjust your settings from anywhere at anytime by simply using the ConnectLife app on your mobile device. More convenience features include sleep mode, a 24-hour timer, and auto-restart after a power outage. With the included window installation kit, the air conditioner can be easily installed and uninstalled in the room of your choice as needed. The maintenance is simple thanks to the washable and removable air filter and the 2 year warranty gives you peace of mind while you relax and enjoy the cool.
    See all Window Air Conditioners

    Product Description

    This window air conditioner, best suited for medium sized rooms up to 350 square feet, with 8,000 BTUs of cooling power, provides more efficient and easier to use features whenever you need to stay cool. Three different modes provide comfort, from cool mode when it's hot, to fan mode for better ventilation. There is even a dry mode to remove excess moisture on extra humid days. The control panel and remote control are simple and intuitive while the unit's Wi-fi capability allows you to adjust your settings from anywhere at anytime by simply using the ConnectLife app on your mobile device. More convenience features include sleep mode, a 24-hour timer, and auto-restart after a power outage. With the included window installation kit, the air conditioner can be easily installed and uninstalled in the room of your choice as needed. The maintenance is simple thanks to the washable and removable air filter and the 2 year warranty gives you peace of mind while you relax and enjoy the cool.
    See all Window Air Conditioners
    Your price for this item is $279.99
    See all Window Air Conditioners
  6. Keystone - 1000 Sq. Ft 18,000 BTU 230V  Window Air Conditioner R32 - White - Front_Zoom
    Top comment

    "air conditioner...nice air conditioner, keeps house cool all the time...This air conditioner is the best thing I brought all summer"

    See all customer reviews

    Product Description

    Discover the ultimate in home comfort with Keystone's modern window and wall-mount air conditioner, designed for easy installation and powerful cooling in large rooms up to 1000 square feet. This coldest 18,000 BTU window AC unit not only provides efficient cooling but also boasts a dehumidification rate of 3.8 pints per hour, ensuring a dry and comfortable living space. Equipped with a quiet operation and a remote control with a built-in thermostat, this energy-efficient window AC unit offers personalized comfort that adapts to your needs. Enjoy energy savings with features like the energy saver mode, sleep mode, and a convenient programmable 24-hour timer, allowing you to customize your cooling preferences and optimize energy consumption according to your schedule. With a Check Filter alert for easy maintenance and a 1-year warranty for peace of mind, Keystone's window-mounted AC unit ensures reliable performance and efficient airflow. Stay cool all summer long with Keystone's best-in-class window AC units for home. (Please note: Requires a special 230V electrical outlet)
    See all Window Air Conditioners
    Top comment

    "air conditioner...nice air conditioner, keeps house cool all the time...This air conditioner is the best thing I brought all summer"

    See all customer reviews

    Product Description

    Discover the ultimate in home comfort with Keystone's modern window and wall-mount air conditioner, designed for easy installation and powerful cooling in large rooms up to 1000 square feet. This coldest 18,000 BTU window AC unit not only provides efficient cooling but also boasts a dehumidification rate of 3.8 pints per hour, ensuring a dry and comfortable living space. Equipped with a quiet operation and a remote control with a built-in thermostat, this energy-efficient window AC unit offers personalized comfort that adapts to your needs. Enjoy energy savings with features like the energy saver mode, sleep mode, and a convenient programmable 24-hour timer, allowing you to customize your cooling preferences and optimize energy consumption according to your schedule. With a Check Filter alert for easy maintenance and a 1-year warranty for peace of mind, Keystone's window-mounted AC unit ensures reliable performance and efficient airflow. Stay cool all summer long with Keystone's best-in-class window AC units for home. (Please note: Requires a special 230V electrical outlet)
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    Your price for this item is $550.99
    Save $49
    The comparable value price is $599.99
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  7. LG - 10,000 BTU Smart Window Air Conditioner - White - Front_Zoom
    Top comment

    "Great little air conditioner- but doesn’t cool the space the size was suggested for properly. ...The LG 12,000 BTU energy efficient window air conditioner works great. When it's running, you can barely hear it, which I love! "

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    Product Description

    Enjoy smart and efficient cooling with the LG LW1017ERSM1, a prime example of innovative technology. Control your home's climate with ease from anywhere using LG ThinQ technology with your smartphone or voice through Amazon Alexa or Hey Google integration. Ideal for medium rooms up to 450 sq. ft., this unit is equipped with 3 cooling and fan speeds along with a 24-hour timer for custom cooling schedules. The 4-way air deflection feature offers optimal airflow direction, offering cooling, dehumidifying, or air circulation. The auto restart feature ensures seamless operation after power outages while the remote control offers convenient operation. With an easy-to-install window kit, slide-out washable filter, and check filter alert, maintenance is straightforward. The LG LW1017ERSM1 is ideal for anyone looking for efficient cooling with advanced technology and user-friendly features.
    See all Window Air Conditioners
    Top comment

    "Great little air conditioner- but doesn’t cool the space the size was suggested for properly. ...The LG 12,000 BTU energy efficient window air conditioner works great. When it's running, you can barely hear it, which I love! "

    See all customer reviews

    Product Description

    Enjoy smart and efficient cooling with the LG LW1017ERSM1, a prime example of innovative technology. Control your home's climate with ease from anywhere using LG ThinQ technology with your smartphone or voice through Amazon Alexa or Hey Google integration. Ideal for medium rooms up to 450 sq. ft., this unit is equipped with 3 cooling and fan speeds along with a 24-hour timer for custom cooling schedules. The 4-way air deflection feature offers optimal airflow direction, offering cooling, dehumidifying, or air circulation. The auto restart feature ensures seamless operation after power outages while the remote control offers convenient operation. With an easy-to-install window kit, slide-out washable filter, and check filter alert, maintenance is straightforward. The LG LW1017ERSM1 is ideal for anyone looking for efficient cooling with advanced technology and user-friendly features.
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    Your price for this item is $355.99
    Save $14
    The comparable value price is $369.99
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  8. LG - 350 Sq. Ft. 8,000 BTU Window Air Conditioner with Remote - White - Front_Zoom

    Product Description

    Get the best cooling solution with the LG LW8024R Window Air Conditioner, the best energy-efficient and modern AC unit for large rooms up to 350 sq. ft. This window and wall mounted AC unit offers the coldest air and is perfect for your home. Enjoy customizable comfort with 3 cooling and fan speeds, a 24-hour timer, and 4-way air deflection. Stay cool and refreshed with this quiet AC unit that also boasts a remote control for convenience. The AC unit with timer ensures efficient operation and easy installation. Keep your indoor air clean with the removable, washable filter and stay informed with the check filter alert. Don't settle for anything less than the best air conditioner - choose the LG LW8024R Window Air Conditioner today!
    See all Window Air Conditioners

    Product Description

    Get the best cooling solution with the LG LW8024R Window Air Conditioner, the best energy-efficient and modern AC unit for large rooms up to 350 sq. ft. This window and wall mounted AC unit offers the coldest air and is perfect for your home. Enjoy customizable comfort with 3 cooling and fan speeds, a 24-hour timer, and 4-way air deflection. Stay cool and refreshed with this quiet AC unit that also boasts a remote control for convenience. The AC unit with timer ensures efficient operation and easy installation. Keep your indoor air clean with the removable, washable filter and stay informed with the check filter alert. Don't settle for anything less than the best air conditioner - choose the LG LW8024R Window Air Conditioner today!
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    Your price for this item is $272.99
    Save $7
    The comparable value price is $279.99
    See all Window Air Conditioners
  9. GE - 350 Sq. Ft. 8,500 BTU Smart Portable Air Conditioner - White - Front_Zoom
    Top comment

    "I live in a three bedroom apartment and I placed my portable air conditioner in my living room and it cooled off the whole house due to the fact that the central air was not working, and I had to wait for a replacement...Awesome Air conditioner,thrilled with the performance of my new portable AC unit"

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 8,000 BTU class (8100 BTU DOE) smart portable air conditioner cools medium rooms up to 350 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners
    Top comment

    "I live in a three bedroom apartment and I placed my portable air conditioner in my living room and it cooled off the whole house due to the fact that the central air was not working, and I had to wait for a replacement...Awesome Air conditioner,thrilled with the performance of my new portable AC unit"

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 8,000 BTU class (8100 BTU DOE) smart portable air conditioner cools medium rooms up to 350 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners
    Your price for this item is $499.99
    Save $30
    The comparable value price is $529.99
    See all Portable Air Conditioners
  10. Hisense - 6,000 BTU 200 Sq. Ft. Window Air Conditioner with Remote Control - White - Front_Zoom

    Product Description

    This window air conditioner, best suited for small sized rooms up to 250 square feet, with 6,000 BTUs of cooling power, provides more efficient and easier to use features whenever you need to stay cool. Three different modes provide comfort, from cool mode when it's hot, to fan mode for better ventilation. There is even a dry mode to remove excess moisture on extra humid days. The control panel and remote control are simple and intuitive so you can easily adjust the settings to your liking. More convenience features include sleep mode, a 24-hour timer, and auto-restart after a power outage. With the included window installation kit, the air conditioner can be easily installed and uninstalled in the room of your choice as needed as the seasons change. The maintenance is simple thanks to the washable and removable air filter and the 2 year warranty gives you peace of mind while you relax and enjoy the cool.
    See all Window Air Conditioners

    Product Description

    This window air conditioner, best suited for small sized rooms up to 250 square feet, with 6,000 BTUs of cooling power, provides more efficient and easier to use features whenever you need to stay cool. Three different modes provide comfort, from cool mode when it's hot, to fan mode for better ventilation. There is even a dry mode to remove excess moisture on extra humid days. The control panel and remote control are simple and intuitive so you can easily adjust the settings to your liking. More convenience features include sleep mode, a 24-hour timer, and auto-restart after a power outage. With the included window installation kit, the air conditioner can be easily installed and uninstalled in the room of your choice as needed as the seasons change. The maintenance is simple thanks to the washable and removable air filter and the 2 year warranty gives you peace of mind while you relax and enjoy the cool.
    See all Window Air Conditioners
    Your price for this item is $229.99
    See all Window Air Conditioners
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