Cost to Run a Box Fan in Montana
Montana's average residential electricity rate is 13.9¢/kWh as of April 2026 — the 7th cheapest in the country, 26% below the U.S. average. At typical usage (8 hours/day), a box fan here costs $2.54 per month.
Per hour
1.0¢
at 50–100 W
Per day
8.3¢
8 hours/day
Per month
$2.54
18 kWh
Per year
$30.44
219 kWh
By usage level in Montana
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | 4.2¢ | $1.27 | $15.22 |
| Typical (8 hrs/day) | 8.3¢ | $2.54 | $30.44 |
| Heavy (16 hrs/day) | $0.17 | $5.07 | $60.88 |
Montana 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 Montana?
At Montana's current average residential rate of 13.9¢/kWh (April 2026), a box fan with typical usage costs about 8.3¢ per day, $2.54 per month, or $30.44 per year.
Is running a box fan in Montana more expensive than average?
No — it's cheaper. Montana's rate is about 26% below the U.S. average: $2.54 per month here versus $3.43 nationally.
What does electricity cost in Montana right now?
Montana residents pay an average of 13.9¢ per kWh as of April 2026 — the 7th cheapest rate of the 51 U.S. jurisdictions we track.