Cost to Run a Window Air Conditioner in Indiana
Indiana's average residential electricity rate is 18.2¢/kWh as of May 2026 — the 32nd cheapest in the country, 1% below the U.S. average. At typical usage (8 hours/day), a window air conditioner here costs $39.84 per month.
Per hour
$0.16
at 500–1,500 W
Per day
$1.31
8 hours/day
Per month
$39.84
219 kWh
Per year
$478
2,628 kWh
By usage level in Indiana
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.66 | $19.92 | $239 |
| Typical (8 hrs/day) | $1.31 | $39.84 | $478 |
| Heavy (16 hrs/day) | $2.62 | $79.67 | $957 |
Indiana vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a window air conditioner in Indiana?
At Indiana's current average residential rate of 18.2¢/kWh (May 2026), a window air conditioner with typical usage costs about $1.31 per day, $39.84 per month, or $478 per year.
Is running a window air conditioner in Indiana more expensive than average?
It's almost exactly the U.S. average: $39.84 per month here versus $40.27 nationally.
What does electricity cost in Indiana right now?
Indiana residents pay an average of 18.2¢ per kWh as of May 2026 — the 32nd cheapest rate of the 51 U.S. jurisdictions we track.