Cost to Run a Box Fan in Idaho
Idaho's average residential electricity rate is 12.7¢/kWh as of April 2026 — the 2nd cheapest in the country, 32% below the U.S. average. At typical usage (8 hours/day), a box fan here costs $2.32 per month.
Per hour
1.0¢
at 50–100 W
Per day
7.6¢
8 hours/day
Per month
$2.32
18 kWh
Per year
$27.81
219 kWh
By usage level in Idaho
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | 3.8¢ | $1.16 | $13.91 |
| Typical (8 hrs/day) | 7.6¢ | $2.32 | $27.81 |
| Heavy (16 hrs/day) | $0.15 | $4.63 | $55.63 |
Idaho 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 Idaho?
At Idaho's current average residential rate of 12.7¢/kWh (April 2026), a box fan with typical usage costs about 7.6¢ per day, $2.32 per month, or $27.81 per year.
Is running a box fan in Idaho more expensive than average?
No — it's cheaper. Idaho's rate is about 32% below the U.S. average: $2.32 per month here versus $3.43 nationally.
What does electricity cost in Idaho right now?
Idaho residents pay an average of 12.7¢ per kWh as of April 2026 — the 2nd cheapest rate of the 51 U.S. jurisdictions we track.