Data through June 2026
Cost to run · Maryland · 21.8¢/kWh residential average
How much does it cost to run a room air conditioner in Maryland?
$116/yr · median certified model
Maryland pays 21.8¢/kWh for residential power — 19% above the national average — lifting the median certified room air conditioner to about $116 a year, versus $98 nationally.
In the national ranking, Maryland lands at 38 of 51 for what a room air conditioner costs to run. At local rates, certified models span $57 (Brothers 102372) to $458 (Friedrich KCVL36B30A) per year — $401 of annual headroom that depends entirely on which unit you buy. For reference, the national extremes are Nevada (13.1¢/kWh) and Hawaii (52.7¢/kWh); the same median room air conditioner would cost $70 and $280 a year there.
The cheapest room air conditioners to run at Maryland rates
| # | Model | kWh/yr | $/yr in MD |
|---|---|---|---|
| 1 | Brothers 102372 | 260 | $57 |
| 2 | Midea MWEUWA-05CRFN8-BCN4 | 260 | $57 |
| 3 | Vissani VAW05V1KWT | 260 | $57 |
| 4 | TCL T05WV9M | 274 | $60 |
| 5 | TCL T05WV9MB | 274 | $60 |
| 6 | TCL T05WV9R | 274 | $60 |
| 7 | TCL T05WV9RB | 274 | $60 |
| 8 | TCL W5WC72 | 274 | $60 |
| 9 | TCL W5WC72-B | 274 | $60 |
| 10 | TCL W5WC72M | 274 | $60 |
Price any model at Maryland rates
Your rate, your numbers
- Per day
- 32¢
- Per month
- $9.68
- Per year
- $116
532 kWh/yr × 21.8¢/kWh = $116/yr
Prefilled with the median certified room air conditioner (532 kWh/yr). Every model page on this site carries its exact certified figure.
Questions, answered with the data
- How much does it cost to run a room air conditioner in Maryland?
- About $116 a year for the median ENERGY STAR certified room air conditioner, at Maryland's average residential rate of 21.8¢/kWh — that's $9.68 a month.
- Is electricity expensive in Maryland?
- Maryland's residential average of 21.8¢/kWh is 19% above the U.S. average of 18.3¢/kWh, ranking 38 of 51 jurisdictions (1 = cheapest).
- What's the cheapest room air conditioner to run in Maryland?
- Among currently certified models, the Brothers 102372 costs the least at about $57 a year at Maryland rates (260 kWh/yr).
- How does Maryland compare with other states?
- The same median room air conditioner costs $70 a year in Nevada (the cheapest state) and $280 in Hawaii (the priciest). Maryland sits at $116.
Keep digging
- All certified room air conditioners compared
- Room Air Conditioners costs in Illinois (rank 36 of 51)
- Room Air Conditioners costs in Pennsylvania (rank 37 of 51)
- Room Air Conditioners costs in Michigan (rank 39 of 51)
- Room Air Conditioners costs in Connecticut (rank 40 of 51)
- Running an air purifier in Maryland
- Running a clothes dryer in Maryland
- Running a clothes washer in Maryland
- Running a computer monitor in Maryland
Rate source: US EIA, average residential price of electricity, see methodology.