How much does it cost to run room air conditioners under 20" wide?

Among 195 certified models in this data, room air conditioners under 20" wide cost $52 to $132 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $88.

Do room air conditioners under 20" wide cost more or less than the average room air conditioner?

The median model here runs $88 a year, 12% less than the $100 median across all certified room air conditioners.

What's the cheapest model among room air conditioners under 20" wide?

The TCL T05WV9M costs about $52 a year at the U.S. average rate (274 kWh/yr) — the lowest certified figure in this group.

What does the certified annual-kWh figure assume for room air conditioners?

The certified annual kWh assumes 750 cooling hours per year (the DOE standard). In hot climates real usage can run well above that; in mild ones, below.

Data through April 2026

Room Air Conditioners · 195 certified models

Room Air Conditioners Under 20" Wide

Filtering to room air conditioners under 20" wide narrows the field to 195 of the 396 certified room air conditioners in this data, ranging $52–$132 a year at national-average electricity rates (median $88).

The 50 most efficient (of 195)

Room Air Conditioners Under 20" Wide, ranked by certified annual kWh
#	Model	kWh/yr	$/yr (US avg)
1	TCL T05WV9M	274	$52
2	TCL T05WV9MB	274	$52
3	TCL T05WV9R	274	$52
4	TCL T05WV9RB	274	$52
5	TCL W5WC72	274	$52
6	TCL W5WC72-B	274	$52
7	TCL W5WC72M	274	$52
8	TCL W5WC72M-B	274	$52
9	LG LW6023IVSMmost efficient	290	$55
10	Midea MAW06U1QWTmost efficient	298	$56
11	Midea MAW06V1QWBL-Tmost efficient	298	$56
12	Midea MAW06V1QWTmost efficient	298	$56
13	Midea MAW06V1UBLmost efficient	298	$56
14	Midea MAW06V1UWTmost efficient	298	$56
15	Midea MWAUQB-06CRFN8-BCN11most efficient	298	$56
16	Hisense WCT06W25A	329	$62
17	Midea MWEUWA-06CRFN8-BCM7	329	$62
18	TCL T06WV9R	329	$62
19	TCL T06WV9RB	329	$62
20	TCL W6WC72	329	$62
21	TCL W6WC72-B	329	$62
22	GE PWJV08Wmost efficient	375	$71
23	Midea 1010451315most efficient	375	$71
24	Midea 1014242943most efficient	375	$71
25	Midea MAW08U1QWTmost efficient	375	$71
26	Midea MAW08U2QWTmost efficient	375	$71
27	Midea MAW08V1WBKmost efficient	375	$71
28	Midea MAW08V1WBK-Tmost efficient	375	$71
29	Midea MAW08V1WWTmost efficient	375	$71
30	Midea MAW08V1WWT-Tmost efficient	375	$71
31	Midea MWAUQB-08CRFN8-BCP0most efficient	375	$71
32	Midea MWEUWA-08CRFN8-BCP0most efficient	375	$71
33	TCL T08WV3Smost efficient	375	$71
34	TCL T08WV9Smost efficient	375	$71
35	TCL T08WV9SBmost efficient	375	$71
36	TCL W8WC72most efficient	375	$71
37	TCL W8WC72-Bmost efficient	375	$71
38	LG LW8022IVSM	387	$73
39	Midea MAW08V1KWT-Amost efficient	387	$73
40	Midea MAW08V1KYWT-Smost efficient	387	$73
41	Midea MWFUQB-8CRFN8-BCN11most efficient	387	$73
42	Midea MAW08HV1KWT-Amost efficient	397	$75
43	Midea MWAUQB-08HRFN8-BCN11most efficient	397	$75
44	BLACK+DECKER BD08NWES	400	$75
45	Century RXTS-81A	400	$75
46	Comfort Aire RXTS-81A	400	$75
47	Danby DAC080B7IWDB-6	400	$75
48	Danby DAC080B8IWDB-6	400	$75
49	Danby DAC080EBIBDB	400	$75
50	ELEMENT EHWR08BE	400	$75

Other size facets

Questions, answered with the data

How much does it cost to run room air conditioners under 20" wide?: Among 195 certified models in this data, room air conditioners under 20" wide cost $52 to $132 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $88.
Do room air conditioners under 20" wide cost more or less than the average room air conditioner?: The median model here runs $88 a year, 12% less than the $100 median across all certified room air conditioners.
What's the cheapest model among room air conditioners under 20" wide?: The TCL T05WV9M costs about $52 a year at the U.S. average rate (274 kWh/yr) — the lowest certified figure in this group.
What does the certified annual-kWh figure assume for room air conditioners?: The certified annual kWh assumes 750 cooling hours per year (the DOE standard). In hot climates real usage can run well above that; in mild ones, below.

The 50 most efficient (of 195)

Other size facets

Questions, answered with the data

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