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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.

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  1. Whynter - ARC-14SH 14,000 BTU (9,200 BTU SACC) Dual Hose Cooling Portable Air Conditioner with Heater, up to 500 sq ft - Platinum/Black - Front_Zoom
    Top comment

    "Whynter - 500 Sq. Ft. Portable Air Conditioner and...Whynter - 500 Sq. Ft. Portable Air Conditioner and Heater - Platinum/Black Keep your home comfortable with this Whynter ARC-14SH 14,000 BTU portable air conditioner and 13,000 BTU heater that features dual-hose operation for fast, efficient cooling. ...I had to look at some videos online to combat sizing issues but aside from that, this air conditioner is amazing. "

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    Product Description

    Keep your home comfortable with this Whynter ARC-14SH 14,000 BTU portable air conditioner and 13,000 BTU heater that features dual-hose operation for fast, efficient cooling. The 101-pts./day dehumidification capacity helps you breathe easily.
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    Top comment

    "Whynter - 500 Sq. Ft. Portable Air Conditioner and...Whynter - 500 Sq. Ft. Portable Air Conditioner and Heater - Platinum/Black Keep your home comfortable with this Whynter ARC-14SH 14,000 BTU portable air conditioner and 13,000 BTU heater that features dual-hose operation for fast, efficient cooling. ...I had to look at some videos online to combat sizing issues but aside from that, this air conditioner is amazing. "

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    Product Description

    Keep your home comfortable with this Whynter ARC-14SH 14,000 BTU portable air conditioner and 13,000 BTU heater that features dual-hose operation for fast, efficient cooling. The 101-pts./day dehumidification capacity helps you breathe easily.
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    Your price for this item is $649.99
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  2. GE - 150 Sq. Ft. 5,000 BTU Portable Air Conditioner with Auto Evaporation Technology - White - Front_Zoom
    Top comment

    "Also, true to other reviews, it does not chill the air as well as a window unit. Nevertheless, it is effective enough to warrant a recommendation from me....Nice air conditioner....I do need a fan to blow the cool air to the end of the room."

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    Product Description

    GE 5,000 BTU Portable Air Conditioner – Compact, Powerful Cooling for Small Rooms. Stay cool and comfortable with GE’s 5,000 BTU Portable Air Conditioner, designed for small rooms up to 150 sq. ft. Whether you need to cool a bedroom, office, or smaller living space, this unit delivers powerful, efficient cooling while maintaining a compact and portable design. The air conditioner features multiple cooling modes and fan speeds, giving you complete control over your comfort. With easy-to-use digital controls and a remote, you can adjust the temperature and airflow from anywhere in the room. The built-in dehumidifier adds convenience by reducing excess moisture in the air, keeping your space dry and comfortable. Equipped with a self-evaporation system, this portable unit eliminates the hassle of frequent draining, while its easy-roll wheels make it simple to move from room to room. The included window installation kit allows for quick and easy setup, making it a flexible option for various spaces in your home. Enjoy energy-efficient cooling with this compact, powerful air conditioner that’s built for performance and convenience.
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    Top comment

    "Also, true to other reviews, it does not chill the air as well as a window unit. Nevertheless, it is effective enough to warrant a recommendation from me....Nice air conditioner....I do need a fan to blow the cool air to the end of the room."

    See all customer reviews

    Product Description

    GE 5,000 BTU Portable Air Conditioner – Compact, Powerful Cooling for Small Rooms. Stay cool and comfortable with GE’s 5,000 BTU Portable Air Conditioner, designed for small rooms up to 150 sq. ft. Whether you need to cool a bedroom, office, or smaller living space, this unit delivers powerful, efficient cooling while maintaining a compact and portable design. The air conditioner features multiple cooling modes and fan speeds, giving you complete control over your comfort. With easy-to-use digital controls and a remote, you can adjust the temperature and airflow from anywhere in the room. The built-in dehumidifier adds convenience by reducing excess moisture in the air, keeping your space dry and comfortable. Equipped with a self-evaporation system, this portable unit eliminates the hassle of frequent draining, while its easy-roll wheels make it simple to move from room to room. The included window installation kit allows for quick and easy setup, making it a flexible option for various spaces in your home. Enjoy energy-efficient cooling with this compact, powerful air conditioner that’s built for performance and convenience.
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    Your price for this item is $319.99

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  3. TCL - Q-Series 450 Sq. Ft. 10,000 BTU Smart Window Air Conditioner - White - Front_Zoom

    Product Description

    Experience powerful, ultra-quiet cooling with the TCL Q-Series Inverter Window AC. Perfect for spaces up to 450 sq. ft., this inverter ac unit delivers quick, consistent cooling while operating as quietly as 32dB in Fan mode and 40dB in Cooling mode. Save up to 38% on energy with AI Inverter technology and ENERGY STAR certification. Installation is simple with a pre-assembled frame that fits windows 24-36” wide. Enjoy full control through the TCL Home App, voice assistants, or your TV. Plus, its secure design lets you open and close your window freely. Stay cool with smarter, quieter, and more efficient performance. Actual coverage may vary based on room size and configuration (ceiling height, number of windows, and other varying conditions) and environment factors such as number of occupants, home insulation, etc. 38% energy savings when compared to the US Federal Standard as stated in the EPA test reports. Performance claims are based on internal laboratory testing conducted in accordance with ISO3744 standards. The actual performance and results of this product may vary based on individual usage, environmental factors, and other variables.
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    Product Description

    Experience powerful, ultra-quiet cooling with the TCL Q-Series Inverter Window AC. Perfect for spaces up to 450 sq. ft., this inverter ac unit delivers quick, consistent cooling while operating as quietly as 32dB in Fan mode and 40dB in Cooling mode. Save up to 38% on energy with AI Inverter technology and ENERGY STAR certification. Installation is simple with a pre-assembled frame that fits windows 24-36” wide. Enjoy full control through the TCL Home App, voice assistants, or your TV. Plus, its secure design lets you open and close your window freely. Stay cool with smarter, quieter, and more efficient performance. Actual coverage may vary based on room size and configuration (ceiling height, number of windows, and other varying conditions) and environment factors such as number of occupants, home insulation, etc. 38% energy savings when compared to the US Federal Standard as stated in the EPA test reports. Performance claims are based on internal laboratory testing conducted in accordance with ISO3744 standards. The actual performance and results of this product may vary based on individual usage, environmental factors, and other variables.
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    Your price for this item is $449.99
    The comparable value price is $504.99

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  4. TCL - Q-Series 550 Sq. Ft. 12,000 BTU Smart Window Air Conditioner - White - Front_Zoom

    Product Description

    Experience powerful, ultra-quiet cooling with the TCL Q-Series Inverter Window AC. Perfect for spaces up to 550 sq. ft., this inverter ac unit delivers quick, consistent cooling while operating as quietly as 35dB in Fan mode and 40dB in Cooling mode. Save up to 38% on energy with AI Inverter technology and ENERGY STAR certification. Installation is simple with a pre-assembled frame that fits windows 24-36” wide. Enjoy full control through the TCL Home App, voice assistants, or your TV. Plus, its secure design lets you open and close your window freely. Stay cool with smarter, quieter, and more efficient performance. Actual coverage may vary based on room size and configuration (ceiling height, number of windows, and other varying conditions) and environment factors such as number of occupants, home insulation, etc. 38% energy savings when compared to the US Federal Standard as stated in the EPA test reports. Performance claims are based on internal laboratory testing conducted in accordance with ISO3744 standards. The actual performance and results of this product may vary based on individual usage, environmental factors, and other variables.
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    Product Description

    Experience powerful, ultra-quiet cooling with the TCL Q-Series Inverter Window AC. Perfect for spaces up to 550 sq. ft., this inverter ac unit delivers quick, consistent cooling while operating as quietly as 35dB in Fan mode and 40dB in Cooling mode. Save up to 38% on energy with AI Inverter technology and ENERGY STAR certification. Installation is simple with a pre-assembled frame that fits windows 24-36” wide. Enjoy full control through the TCL Home App, voice assistants, or your TV. Plus, its secure design lets you open and close your window freely. Stay cool with smarter, quieter, and more efficient performance. Actual coverage may vary based on room size and configuration (ceiling height, number of windows, and other varying conditions) and environment factors such as number of occupants, home insulation, etc. 38% energy savings when compared to the US Federal Standard as stated in the EPA test reports. Performance claims are based on internal laboratory testing conducted in accordance with ISO3744 standards. The actual performance and results of this product may vary based on individual usage, environmental factors, and other variables.
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    Your price for this item is $409.99
    The comparable value price is $559.99

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  5. Friedrich - 12,000 BTU 550 Sq Ft Inverter Window Air Conditioner - White - Front_Zoom

    Product Description

    The all new Chill Premier Inverter is ultra-quiet, adaptive and efficient comfort. State-of-the-art Precision Inverter Technology provides efficient, precise temperature control and Library-Quiet sound levels, while convenience comes standard with simplified installation, and an adaptable design that allows the window to be opened, even after the unit is installed. Every Chill Premier Inverter model is a clever choice that delivers complete comfort and control.
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    Product Description

    The all new Chill Premier Inverter is ultra-quiet, adaptive and efficient comfort. State-of-the-art Precision Inverter Technology provides efficient, precise temperature control and Library-Quiet sound levels, while convenience comes standard with simplified installation, and an adaptable design that allows the window to be opened, even after the unit is installed. Every Chill Premier Inverter model is a clever choice that delivers complete comfort and control.
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    Your price for this item is $629.99

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  6. Keystone - 1000 Sq. Ft 18,000 BTU 230V Window Air Conditioner R32 - White - Front_Zoom
    Top comment

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

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    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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    Top comment

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

    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 $565.99
    The comparable value price is $599.99

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  7. TCL - Q-Series 350 Sq. Ft. 8,000 BTU Smart Window Air Conditioner - White - Front_Zoom
    Top comment

    "I highly recommend this TCL Air Conditioner to you if you want to be cool like me!...Love this air conditioner...This is my first smart air conditioner and to say the least I am impressed. "

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    Product Description

    Experience powerful, ultra-quiet cooling with the TCL Q-Series Inverter Window AC. Perfect for spaces up to 350 sq. ft., this inverter ac unit delivers quick, consistent cooling while operating as quietly as 32dB in Fan mode and 40dB in Cooling mode. Save up to 38% on energy with AI Inverter technology and ENERGY STAR certification. Installation is simple with a pre-assembled frame that fits windows 24-36” wide. Enjoy full control through the TCL Home App, voice assistants, or your TV. Plus, its secure design lets you open and close your window freely. Stay cool with smarter, quieter, and more efficient performance. Actual coverage may vary based on room size and configuration (ceiling height, number of windows, and other varying conditions) and environment factors such as number of occupants, home insulation, etc. 38% energy savings when compared to the US Federal Standard as stated in the EPA test reports. Performance claims are based on internal laboratory testing conducted in accordance with ISO3744 standards. The actual performance and results of this product may vary based on individual usage, environmental factors, and other variables.
    See all Window Air Conditioners
    Top comment

    "I highly recommend this TCL Air Conditioner to you if you want to be cool like me!...Love this air conditioner...This is my first smart air conditioner and to say the least I am impressed. "

    See all customer reviews

    Product Description

    Experience powerful, ultra-quiet cooling with the TCL Q-Series Inverter Window AC. Perfect for spaces up to 350 sq. ft., this inverter ac unit delivers quick, consistent cooling while operating as quietly as 32dB in Fan mode and 40dB in Cooling mode. Save up to 38% on energy with AI Inverter technology and ENERGY STAR certification. Installation is simple with a pre-assembled frame that fits windows 24-36” wide. Enjoy full control through the TCL Home App, voice assistants, or your TV. Plus, its secure design lets you open and close your window freely. Stay cool with smarter, quieter, and more efficient performance. Actual coverage may vary based on room size and configuration (ceiling height, number of windows, and other varying conditions) and environment factors such as number of occupants, home insulation, etc. 38% energy savings when compared to the US Federal Standard as stated in the EPA test reports. Performance claims are based on internal laboratory testing conducted in accordance with ISO3744 standards. The actual performance and results of this product may vary based on individual usage, environmental factors, and other variables.
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    Your price for this item is $449.99

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  8. GE - 350 Sq. Ft. 8,500 BTU Smart Portable Air Conditioner - White - Front_Zoom
    Top comment

    "Air conditioner...Like. cools quickly. Good air conditioner. Easy setup...Very easy to set up. Very cold air. Works like a charm"

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    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.
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    Top comment

    "Air conditioner...Like. cools quickly. Good air conditioner. Easy setup...Very easy to set up. Very cold air. Works like a charm"

    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.
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    Your price for this item is $569.99

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  9. LG - 10,000 BTU Smart Window Air Conditioner - White - Front_Zoom
    Top comment

    "Love my LG Air Conditioner...I love my new LG 10,000 BTU Air Conditioner!!! It cools the room down. I am so happy!!!...Great little air conditioner- but doesn’t cool the space the size was suggested for properly. "

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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.
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    Top comment

    "Love my LG Air Conditioner...I love my new LG 10,000 BTU Air Conditioner!!! It cools the room down. I am so happy!!!...Great little air conditioner- but doesn’t cool the space the size was suggested for properly. "

    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 $359.99
    The comparable value price is $369.99

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  10. Keystone - 650 Sq. Ft 14,000 Cooling BTU Window Air Conditioner - White - Front_Zoom
    Top comment

    "This seems like a functional energy efficient air conditioner and I’ve always been impressed by the Keystone brand. ...[This review was collected as part of a promotion.] This keystone air conditioner is so nice that it blows cool air , fits perfectly in my window such a lifesaver during these hot times. "

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    Product Description

    Stay cool and comfortable with Keystone's reliable window-mounted air conditioning units, designed to deliver consistent cooling even on the hottest days. This 14,000 BTU window AC unit can effectively cool rooms up to 650 square feet, while also removing up to 2.1 pints of moisture per hour for improved air quality. Ideal for medium-sized living spaces such as apartments, dorm rooms, and sheds, this unit features a unique remote control with a built-in thermostat. It senses the temperature of your specific location in the room and adjusts the cooling accordingly, providing personalized comfort. In addition to its cooling capabilities, this AC offers money-saving features, including energy saver mode, sleep mode, and a programmable 24-hour timer. With these options, you can optimize energy usage and customize your cooling preferences to fit your schedule. The Check Filter alert ensures that you never forget to clean the mesh filter, maintaining efficient airflow and prolonging the lifespan of the unit. With a 1-year warranty, Keystone not only prioritizes your comfort but also ensures a cost-conscious price. Invest in Keystone's reliable window-mounted air conditioning units and enjoy a cool and comfortable living space throughout the summer.
    See all Window Air Conditioners
    Top comment

    "This seems like a functional energy efficient air conditioner and I’ve always been impressed by the Keystone brand. ...[This review was collected as part of a promotion.] This keystone air conditioner is so nice that it blows cool air , fits perfectly in my window such a lifesaver during these hot times. "

    See all customer reviews

    Product Description

    Stay cool and comfortable with Keystone's reliable window-mounted air conditioning units, designed to deliver consistent cooling even on the hottest days. This 14,000 BTU window AC unit can effectively cool rooms up to 650 square feet, while also removing up to 2.1 pints of moisture per hour for improved air quality. Ideal for medium-sized living spaces such as apartments, dorm rooms, and sheds, this unit features a unique remote control with a built-in thermostat. It senses the temperature of your specific location in the room and adjusts the cooling accordingly, providing personalized comfort. In addition to its cooling capabilities, this AC offers money-saving features, including energy saver mode, sleep mode, and a programmable 24-hour timer. With these options, you can optimize energy usage and customize your cooling preferences to fit your schedule. The Check Filter alert ensures that you never forget to clean the mesh filter, maintaining efficient airflow and prolonging the lifespan of the unit. With a 1-year warranty, Keystone not only prioritizes your comfort but also ensures a cost-conscious price. Invest in Keystone's reliable window-mounted air conditioning units and enjoy a cool and comfortable living space throughout the summer.
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    Your price for this item is $399.99

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