Cost to Run a Box Fan in Idaho
Idaho's average residential electricity rate is 13.7¢/kWh as of July 2026 — the 5th cheapest in the country, 25% below the U.S. average. At typical usage (8 hours/day), a box fan here costs $2.50 per month.
Per hour
1.0¢
at 50–100 W
Per day
8.2¢
8 hours/day
Per month
$2.50
18 kWh
Per year
$30.00
219 kWh
By usage level in Idaho
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | 4.1¢ | $1.25 | $15.00 |
| Typical (8 hrs/day) | 8.2¢ | $2.50 | $30.00 |
| Heavy (16 hrs/day) | $0.16 | $5.00 | $60.01 |
Idaho vs. the rest of the country
Monthly cost at typical usage.
Idaho $2.50
West average $3.63
U.S. average $3.34
Frequently asked questions
How much does it cost to run a box fan in Idaho?
At Idaho's current average residential rate of 13.7¢/kWh (July 2026), a box fan with typical usage costs about 8.2¢ per day, $2.50 per month, or $30.00 per year.
Is running a box fan in Idaho more expensive than average?
No — it's cheaper. Idaho's rate is about 25% below the U.S. average: $2.50 per month here versus $3.34 nationally.
What does electricity cost in Idaho right now?
Idaho residents pay an average of 13.7¢ per kWh as of July 2026 — the 5th cheapest rate of the 51 U.S. jurisdictions we track.
Box Fan costs in nearby states
What else costs to run in Idaho
Electric Furnace $250/mo Central Air Conditioner $117/mo Heat Pump $99.96/mo Pool Heater (Heat Pump) $83.30/mo Garage Heater $62.47/mo Electric Water Heater $54.35/mo Tankless Electric Water Heater $52.48/mo Space Heater $49.98/mo Baseboard Heater $49.98/mo Oil-Filled Radiator Heater $49.98/mo Pool Pump $49.98/mo EV Charging (Level 2, Home) $41.65/mo