Cost to Run a Portable Air Conditioner in Missouri
Missouri's average residential electricity rate is 16.1¢/kWh as of July 2026 — the 25th cheapest in the country, 12% below the U.S. average. At typical usage (8 hours/day), a portable air conditioner here costs $39.16 per month.
Per hour
$0.16
at 700–1,500 W
Per day
$1.29
8 hours/day
Per month
$39.16
243 kWh
Per year
$470
2,920 kWh
By usage level in Missouri
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.64 | $19.58 | $235 |
| Typical (8 hrs/day) | $1.29 | $39.16 | $470 |
| Heavy (16 hrs/day) | $2.58 | $78.31 | $940 |
Missouri vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a portable air conditioner in Missouri?
At Missouri's current average residential rate of 16.1¢/kWh (July 2026), a portable air conditioner with typical usage costs about $1.29 per day, $39.16 per month, or $470 per year.
Is running a portable air conditioner in Missouri more expensive than average?
No — it's cheaper. Missouri's rate is about 12% below the U.S. average: $39.16 per month here versus $44.51 nationally.
What does electricity cost in Missouri right now?
Missouri residents pay an average of 16.1¢ per kWh as of July 2026 — the 25th cheapest rate of the 51 U.S. jurisdictions we track.