Cost to Run a Box Fan in Illinois
Illinois's average residential electricity rate is 23.9¢/kWh as of May 2026 — the 40th cheapest in the country, 30% above the U.S. average. At typical usage (8 hours/day), a box fan here costs $4.36 per month.
Per hour
1.8¢
at 50–100 W
Per day
$0.14
8 hours/day
Per month
$4.36
18 kWh
Per year
$52.34
219 kWh
By usage level in Illinois
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | 7.2¢ | $2.18 | $26.17 |
| Typical (8 hrs/day) | $0.14 | $4.36 | $52.34 |
| Heavy (16 hrs/day) | $0.29 | $8.72 | $105 |
Illinois vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a box fan in Illinois?
At Illinois's current average residential rate of 23.9¢/kWh (May 2026), a box fan with typical usage costs about $0.14 per day, $4.36 per month, or $52.34 per year.
Is running a box fan in Illinois more expensive than average?
Yes. Illinois's electricity costs about 30% more than the U.S. average, so the same usage costs $4.36 per month here versus $3.36 nationally.
What does electricity cost in Illinois right now?
Illinois residents pay an average of 23.9¢ per kWh as of May 2026 — the 40th cheapest rate of the 51 U.S. jurisdictions we track.