WattCost

Data through June 2026

Cost to run · Missouri · 16.2¢/kWh residential average

How much does it cost to run a room air conditioner in Missouri?

$86/yr · median certified model

Residential electricity in Missouri runs 16.2¢/kWh — 12% under the U.S. average — putting the median certified room air conditioner at about $86 a year, versus $98 nationally.

In the national ranking, Missouri lands at 25 of 51 for what a room air conditioner costs to run. Model choice matters as much as geography: at Missouri rates the most efficient certified model (Brothers 102372) costs $42 a year while the most power-hungry (Friedrich KCVL36B30A) costs $340 — a spread of $298 every year. 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.

Missouri
$86
US average
$98
Nevada
$70
Hawaii
$280
Median certified room air conditioner (532 kWh/yr) per year, at each rate

The cheapest room air conditioners to run at Missouri rates

Top 10 by certified kWh, priced at 16.2¢/kWh
#ModelkWh/yr$/yr in MO
1Brothers 102372260$42
2Midea MWEUWA-05CRFN8-BCN4260$42
3Vissani VAW05V1KWT260$42
4TCL T05WV9M274$44
5TCL T05WV9MB274$44
6TCL T05WV9R274$44
7TCL T05WV9RB274$44
8TCL W5WC72274$44
9TCL W5WC72-B274$44
10TCL W5WC72M274$44

Price any model at Missouri rates

Your rate, your numbers

Per day
24¢
Per month
$7.19
Per year
$86

532 kWh/yr × 16.2¢/kWh = $86/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 Missouri?
About $86 a year for the median ENERGY STAR certified room air conditioner, at Missouri's average residential rate of 16.2¢/kWh — that's $7.19 a month.
Is electricity expensive in Missouri?
Missouri's residential average of 16.2¢/kWh is 12% below the U.S. average of 18.3¢/kWh, ranking 25 of 51 jurisdictions (1 = cheapest).
What's the cheapest room air conditioner to run in Missouri?
Among currently certified models, the Brothers 102372 costs the least at about $42 a year at Missouri rates (260 kWh/yr).
How does Missouri 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). Missouri sits at $86.

Keep digging

Rate source: US EIA, average residential price of electricity, see methodology.