7 Best Conventional Window Air Conditioners Under $500 in 2026
We compared seven conventional window air conditioners under $500 for living rooms and large spaces on capacity, power needs, noise and window fit.
By Daniel Brooks
Updated October 15, 2026
Conventional window air conditioners under $500 are built for living rooms, open-plan spaces and large bedrooms. In this price range you can buy a 12,000 BTU unit for 550 sq ft, a 14,000 BTU inverter for 700 sq ft, an 18,000 BTU unit for up to 1,000 sq ft, or a model that also heats. Our list of the best conventional window air conditioners under $500 compares seven of them on capacity, compressor type, noise, power needs and window fit. For every size and type in this category, see our Conventional Window Air Conditioners page.
All seven were listed under the $500 cap when we checked prices in October 2026. Two of them need a 230V outlet, and the rest plug into a standard 115V outlet, so check your wiring before anything else. These are also big, heavy units, between 63 and 92 pounds, so window size and installation help matter more here than at lower prices.
All Products Compared
| Product | Best For | Cooling Capacity | Room Size | Power | Notable Feature |
|---|---|---|---|---|---|
| LG 12,000 BTU Window Air Conditioner (LW1216ER) | Overall | 12,000 BTU | Up to 550 sq ft | 115V | 4.2 from 2,274 ratings |
| Midea 14,000 BTU Smart Inverter Window Air Conditioner | Large rooms | 14,000 BTU | Up to 700 sq ft | 115V | Inverter, 41 dBA |
| LG 7,600 BTU Window Air Conditioner with Heat | Heating and cooling | 7,600 BTU | Up to 330 sq ft | 115V | Supplemental heat |
| LG 14,000 BTU Window Air Conditioner (LW1424RD) | 700 sq ft on 115V | 14,000 BTU | Up to 700 sq ft | 115V | Auto Restart |
| Hisense 12,000 BTU Window Air Conditioner | App control | 12,000 BTU | Up to 550 sq ft | 115V | 2-year warranty |
| ROVSUN 12,000 BTU Window Air Conditioner with Heat | Smart heat and cool | 12,000 BTU | Up to 550 sq ft | 230V | Heat, app and voice control |
| Midea 18,000 BTU Smart Inverter Window Air Conditioner | Very large spaces | 18,000 BTU | Up to 1,000 sq ft | 230V | Inverter, ENERGY STAR certified |
| Award | Product | WikiCooling Score About WikiCooling ScoreThe WikiCooling Score is our own rating from 0 to 10, based on the criteria described on our How We Review page. It reflects research, not laboratory measurement, and is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | |
|---|---|---|---|
| Best Value |
LG LW1216ER 12,000 BTU Window Air Conditioner
|
8.1/10 | Buy |
| Best Premium |
Midea 14,000 BTU Smart Inverter Window Air
|
8.0/10 | Buy |
| Best Budget |
LG 7,600 BTU Window Air Conditioner with Heat
|
8.1/10 | Buy |
LG LW1424RD 14,000 BTU Window Air Conditioner
|
7.3/10 | Buy | |
| Best Overall |
Hisense 12,000 BTU Window Air Conditioner
|
8.3/10 | Buy |
ROVSUN 12000 BTU Window Air Conditioner with Heat
|
7.2/10 | Buy | |
Midea 18,000 BTU Smart Inverter Window Air
|
7.2/10 | Buy |
LG LW1216ER 12,000 BTU Window Air Conditioner
The LG LW1216ER window air conditioner delivers 12,000 BTUs of cooling for rooms up to 550 square feet. Its low noise operation at 52 dB makes it suitable for bedrooms, and features like 4-way air deflection and a 24-hour timer add convenience. This unit is a solid choice for those seeking a reliable, mid-range window AC with essential controls.
Pros
- Quiet operation at 52 dB
- 4-way air deflection
- Auto restart after power outage
- Washable filter with alert
- Remote control included
Cons
- Heavy at 81 pounds
- No inverter compressor
- Requires window opening width 27-39 inches
Midea 14,000 BTU Smart Inverter Window Air
This 14,000 BTU window unit uses inverter technology to cool large rooms up to 700 square feet with noise as low as 41 dBA. Its smart home integration, via the Midea Air app, Alexa, or Google Assistant, suits tech-savvy users who want remote and voice control. The Energy Star certified design and R-32 refrigerant make it an efficient choice for whole-room cooling.
Pros
- Inverter compressor for energy efficiency
- Ultra-quiet operation at 41 dBA
- Wi-Fi and voice control compatible
- Cools large rooms up to 700 sq ft
- Washable filter for easy maintenance
Cons
- Heavy at 63.5 pounds
- Fits only windows 23 to 36 inches wide
- No heating function
LG 7,600 BTU Window Air Conditioner with Heat
This LG window air conditioner provides both cooling and supplemental heat for medium rooms up to 330 square feet. It operates at sound levels as low as 50 dB, has two cooling and fan speeds, and includes a remote control for easy adjustments. The auto restart feature ensures the unit resumes operation after a power outage, making it a convenient year-round comfort solution.
Pros
- Cools and heats from a single window unit
- Quiet operation at 50 dB
- Auto restart after power outage
- Easy slide-in installation included
- Remote control for convenient adjustments
Cons
- No inverter compressor for variable speed
- Heavy at 69 pounds
- Only two fan and cooling speeds
LG LW1424RD 14,000 BTU Window Air Conditioner
Designed for medium to large rooms up to 800 sq ft, this LG window unit delivers 14,000 BTUs of cooling power with three cooling and fan speeds. Its auto restart and 24-hour timer provide scheduling flexibility, while the removable washable filter and check filter alert simplify maintenance. The included remote and 4-way air deflection add convenience.
Pros
- 14,000 BTU capacity for large rooms
- Auto restart after power outage
- Washable filter with check alert
- Remote control with 24-hour timer
- 4-way air deflection
Cons
- Heavy at 82 pounds
- No heat mode (cooling only)
- Noise level of 59 dB
Hisense 12,000 BTU Window Air Conditioner
This 12,000 BTU window air conditioner from Hisense covers rooms up to 550 square feet with cooling, fan, and dehumidifier modes. Its ConnectLife app allows remote control, and four-way air direction helps maintain even temperatures. It is a good fit for bedrooms, living rooms, or offices where smart control and versatility are valued.
Pros
- Smart app control for remote operation
- Three modes for cooling, fan, and dehumidifying
- Four-way air direction for even cooling
- Quiet operation at 56 dB
- 2-year warranty for added peace of mind
Cons
- Heavy at 65.9 pounds for installation
- Fan airflow weaker than some 12,000 BTU units
- Non-inverter compressor may have less steady cooling
ROVSUN 12000 BTU Window Air Conditioner with Heat
Offering both cooling and heating in one window unit, the ROVSUN 12000 BTU model covers rooms up to 550 square feet. It includes WiFi and voice control for convenient operation. This unit is a good fit for year-round climate control in medium-sized spaces.
Pros
- Dual heating and cooling
- Smart controls via app and voice
- Covers medium rooms up to 550 sq ft
- Easy filter access
- Multiple operating modes
Cons
- No inverter compressor
- Heavy at 78 lbs
- Potential control sync issues
Midea 18,000 BTU Smart Inverter Window Air
This 18,000 BTU window air conditioner from Midea uses inverter technology for quieter, more efficient cooling of spaces up to 1,000 square feet. It offers Wi-Fi control via the SmartHome app, Alexa and Google Assistant voice commands, and a noise level as low as 48 dB. Best for large living areas or open-plan homes where a 230V outlet is available.
Pros
- Energy Star certified
- Inverter technology reduces power consumption
- SmartHome app with voice control
- Quiet operation at 48 dB
- Cools large rooms up to 1,000 sq ft
Cons
- Requires a 230V outlet, not standard 115V
- Heavy at 91.5 pounds, may need two people to install
- Fits windows with minimum width 28 inches
Top 3 Conventional Window Air Conditioners Under $500 Reviewed
#1 LG LW1216ER 12,000 BTU Window Air Conditioner: Best Overall
Why We Picked It
The LG LW1216ER is the most proven unit in this guide, with a 4.2 rating from 2,274 ratings, far more buyer feedback than any other model here. It is rated for rooms up to 550 sq ft (about 22 by 25 feet), which covers most living rooms, large bedrooms and kitchens, and it runs on a standard 115V outlet.
LG lists it as low as 53 dB on low mode, quiet for a 12,000 BTU unit. You get a digital control panel and a remote, three cooling and fan speeds with Auto Cool, 4-way air deflection and a 24-hour on/off timer. The filter slides out for washing and has a reminder light, and the title lists Auto Restart, so the unit comes back on after a power cut.
Key Specifications
- Cooling Capacity: 12,000 BTU
- Room Size: Up to 550 sq ft
- Noise Level: As low as 53 dB (low mode)
- Power: 115V
- Controls: Digital panel, remote, 24-hour timer
- Window Fit: 27″ to 39″ wide, 16″ minimum height
| Pros | Cons |
|---|---|
|
|
Things to Consider
This is a standard on/off compressor, so it will not be as quiet or as efficient as the Midea inverter below. The 27 inch minimum window width rules out narrow windows, and at 81 pounds you need two people and a solid sill or bracket.
Best For
This unit is best for a living room or large bedroom up to 550 sq ft where you want a reliable, proven unit that plugs into a normal outlet.
Check the current price and availability of the LG LW1216ER 12,000 BTU Window Air Conditioner on Amazon.
Read our full LG LW1216ER 12,000 BTU Window Air Conditioner review.
#2 Midea 14,000 BTU Smart Inverter Window Air Conditioner: Best for Large Rooms
Why We Picked It
The Midea MAW14S1VWT-A is the most capable 115V unit here. It is rated for rooms up to 700 sq ft, it uses an inverter compressor, and it is ENERGY STAR certified. The specifications give a SEER of 17, the highest in this group, and Midea lists it as low as 41 dBA, much quieter than standard 14,000 BTU units. It has a 4.1 rating from 143 ratings.
Because the inverter slows down rather than switching off, it holds the temperature steady in a big room without the loud on/off cycling of a standard unit. You get an LED display, four modes (Auto, Cool, Dry and Fan), three fan speeds plus Auto, a 24-hour timer, an ECO setting, the SmartHome app and voice control.
Key Specifications
- Cooling Capacity: 14,000 BTU
- Room Size: Up to 700 sq ft
- Noise Level: As low as 41 dBA
- Compressor: Inverter, ENERGY STAR certified
- Power: 115V
- Window Fit: 23″ to 36″ wide, 19.5″ minimum height
| Pros | Cons |
|---|---|
|
|
Things to Consider
The tall 19.5 inch minimum opening is the main limit, so measure the raised sash first. The unit draws about 1,500 watts, so give it a circuit without other large appliances.
Best For
This unit is best for a living room or open space of 550 to 700 sq ft where you want quiet, efficient cooling without rewiring for 230V.
Check the current price and availability of the Midea 14,000 BTU Smart Inverter Window Air Conditioner on Amazon.
Read our full Midea 14,000 BTU Smart Inverter Window Air Conditioner review.
#3 LG 7,600 BTU Window Air Conditioner with Heat: Best for Heating and Cooling
Why We Picked It
The LG LW8023HR is for a room you want to keep comfortable all year. It cools rooms up to 330 sq ft and adds supplemental heat for cool spring and fall days, so one window unit can replace a separate space heater in a bedroom or office. It has a 4.1 rating from 22 ratings.
LG lists it as low as 52 dB on low mode. It has two cooling, heating and fan speeds, a remote, a 24-hour timer and Auto Restart after a power failure. The slide in-out chassis makes installation and seasonal removal easier, and it runs on a standard 115V outlet. The kit fits windows 22 to 36 inches wide with a 14 inch minimum opening.
Key Specifications
- Cooling Capacity: 7,600 BTU
- Room Size: Up to 330 sq ft
- Noise Level: As low as 52 dB (low mode)
- Heat: Supplemental heat
- Power: 115V
- Window Fit: 22″ to 36″ wide, 14″ minimum height
| Pros | Cons |
|---|---|
|
|
Things to Consider
You pay for the heater: this costs about as much as a 12,000 BTU cooling-only unit but covers only 330 sq ft. The title gives 7,600 BTU and 330 sq ft, but the specifications list slightly lower figures for both, so size it for a smaller room.
Best For
This unit is best for a bedroom or home office a little under 330 sq ft where you want cooling in summer and extra heat in the shoulder seasons.
Check the current price and availability of the LG 7,600 BTU Window Air Conditioner with Heat on Amazon.
Read our full LG 7,600 BTU Window Air Conditioner with Heat review.
Other Models Worth Considering
LG 14,000 BTU Window Air Conditioner (LW1424RD). A standard-compressor alternative to the Midea 14,000 BTU that also runs on 115V. LG rates it for 700 sq ft in the title and up to 800 sq ft in the feature text. It has three cooling and fan speeds, Auto Cool, a remote, a slide-out washable filter with Check Filter alert, Auto Restart and a 24-hour timer. It lists 59 dB, weighs 82 pounds and has a 3.8 rating from 194 ratings.
Hisense 12,000 BTU Window Air Conditioner (AAW12CW26). It adds the ConnectLife app, a touch panel and a remote to a 550 sq ft, 115V unit, with cooling, fan and dehumidifier modes and four-way air direction. It lists 56 dB, weighs 65.9 pounds and comes with a 2-year warranty. The listing has no rating count yet.
ROVSUN 12,000 BTU Window Air Conditioner with Heat. This unit heats, cools, dehumidifies and runs as a fan in rooms up to 550 sq ft, with app control and Alexa or Google Assistant voice control. It needs a 230V outlet, weighs 78 pounds and lists 63 dB, the loudest figure here. It has a 3.6 rating from 123 ratings.
Midea 18,000 BTU Smart Inverter Window Air Conditioner (MAW18S2VWT-A). The most capacity under $500 in our data, rated for up to 1,000 sq ft, with an ENERGY STAR certified inverter, a listed 48 dBA and SmartHome app and voice control. It requires a 230V outlet and will not work on standard 115V, and at 91.5 pounds it is a two-person install. It has a 3.5 rating from 59 ratings.
What to Expect from Conventional Window Air Conditioners Under $500
Near the top of this budget you are buying either size or features. Cooling-only units here run from 12,000 to 18,000 BTU, enough for a living room or an open-plan space. If you want heat as well, the same money buys a smaller unit with a heater. Inverter models are available at 14,000 and 18,000 BTU.
Prices on large window units change often during the season. All seven picks were at or under $500 when we checked, and the product cards show the current price. For more large-room options at every price, see our guide to conventional window air conditioners for large rooms, and if you want heat, our list of conventional window air conditioners with heat.
How to Choose a Conventional Window Air Conditioner Under $500
Check Your Outlet First
The Midea 18,000 BTU and the ROVSUN 12,000 BTU with heat need a 230V outlet. Most home outlets are 115V, so unless you already have a 230V receptacle near the window, choose one of the 115V models or plan for an electrician.
Size the Unit to the Space
ENERGY STAR publishes this general guide for sizing a room air conditioner by floor area:
| Room Size (sq ft) | Cooling Capacity (BTU/hr) |
|---|---|
| 100 to 150 | 5,000 |
| 150 to 250 | 6,000 |
| 250 to 300 | 7,000 |
| 300 to 350 | 8,000 |
| 350 to 400 | 9,000 |
| 400 to 450 | 10,000 |
| 450 to 550 | 12,000 |
| 550 to 700 | 14,000 |
| 700 to 1,000 | 18,000 |
Reduce capacity by 10 percent for a heavily shaded room, increase it by 10 percent for a very sunny room, add 600 BTU for each regular occupant beyond two, and add 4,000 BTU if the unit cools a kitchen. Source: ENERGY STAR.
Measure the Window and Plan the Install
Large units need large openings. The LG 12,000 BTU needs a window at least 27 inches wide, the Midea 18,000 BTU at least 28 inches, and the two Midea inverters need openings of 18.5 to 19.5 inches. Every unit here weighs over 60 pounds, so use two people and an exterior support bracket.
Weigh Inverter Savings Against Price
A large air conditioner running all afternoon uses a lot of power, so efficiency matters more at this size. The Midea 14,000 BTU lists a SEER of 17, against 11.2 to 13 for the standard LG units, and runs far quieter.
How We Evaluate Conventional Window Air Conditioners
We rank conventional window air conditioners on manufacturer specifications, listing details and aggregated buyer ratings. For this list we kept only units listed at or under $500. We weighed room coverage, compressor type and buyer feedback first, giving more weight to ratings from larger numbers of buyers, then compared power requirements, noise, efficiency, controls, window fit and weight. Where a listing gives two different figures, we note both and size against the more conservative one.
Frequently Asked Questions
Can a window air conditioner under $500 cool a whole apartment?
It can cool a large open area. The Midea 14,000 BTU covers 700 sq ft on 115V, and the Midea 18,000 BTU covers up to 1,000 sq ft on 230V. Closed-off bedrooms will still stay warmer than the room with the unit.
Do I need a 230V outlet for a large window air conditioner?
Not always. The LG 12,000 BTU, LG 14,000 BTU, Hisense 12,000 BTU and Midea 14,000 BTU in this list all use a standard 115V outlet. The Midea 18,000 BTU and the ROVSUN with heat require 230V.
Is a window unit with heat worth it?
If you need heat for a few weeks in spring and fall, yes. A unit like the LG 7,600 BTU with heat saves you a separate space heater, but it costs more than a cooling-only unit of the same size.
Which unit under $500 is the quietest?
The Midea 14,000 BTU inverter lists 41 dBA and the Midea 18,000 BTU 48 dBA. The standard LG units list 52 to 59 dB and the ROVSUN with heat 63 dB.
Final Verdict
The LG LW1216ER 12,000 BTU Window Air Conditioner is the best conventional window air conditioner under $500 for most living rooms, with 550 sq ft of coverage on a standard outlet and by far the largest base of buyer ratings. For a room up to 700 sq ft, the Midea 14,000 BTU Smart Inverter Window Air Conditioner is quieter and more efficient and still runs on 115V. If you want heat as well as cooling for a smaller room, choose the LG 7,600 BTU Window Air Conditioner with Heat. Check your outlet voltage and window size first, since at this size they decide which units you can install.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.