How much does a box fan cost per month in Rhode Island?

About $2.65 a month, assuming 75 W, 10 hours a day, 150 days a year at 28.29¢/kWh.

How many kilowatt-hours does a box fan use?

Roughly 112 kWh a year under these assumptions, or 0.07 kWh for every hour it runs.

Is that expensive compared with other states?

Rhode Island has the 7th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $20.60 a year.

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Cost to run a box fan in Rhode Island (July 2026 rates)

At 28.29¢ per kilowatt-hour — Rhode Island's average residential price in July 2026 — running a box fan costs $31.83 a year. That is 55% more than the national average of $20.60. Rhode Island's residential rate is up 8.1% from July 2025, which moves this appliance from $29.45 to $31.83 a year.

Per hour: 2.1¢
Per day of use: 21.2¢
Per month: $2.65
Per year: $31.83

Assumption: 75 W, 10 hours a day, 150 days a year — 112 kWh a year. 20-inch box fan on high. Low speed roughly halves the draw. Use the calculator to swap in the numbers from your own model.

How Rhode Island compares

Rhode Island pays 28.29¢/kWh, the 7th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $11.23 more a year than the typical U.S. household pays for the same use. Running the same box fan costs $14.31 a year in Louisiana and $54.00 in Hawaii, so where you live changes this bill by $39.69 a year.

State	Rate	Per month	Per year
District of Columbia	25.21¢	$2.36	$28.36
New Hampshire	26.60¢	$2.49	$29.93
Rhode Island	28.29¢	$2.65	$31.83
Alaska	28.83¢	$2.70	$32.43
New York	29.90¢	$2.80	$33.64

States ranked by average residential price, cheapest first. See all 51 states for a box fan.

What else costs about the same in Rhode Island

Electric kettle$30.98 a year in RI Microwave$30.98 a year in RI Incandescent bulb$30.98 a year in RI

Cutting the number down

Pointing one out of an upstairs window at night pulls cool air through the whole house for a fraction of what cooling it costs.
Box fans are cheap to run but not free: continuous summer use adds up to real kilowatt-hours.

Questions

How much does a box fan cost per month in Rhode Island?: About $2.65 a month, assuming 75 W, 10 hours a day, 150 days a year at 28.29¢/kWh.
How many kilowatt-hours does a box fan use?: Roughly 112 kWh a year under these assumptions, or 0.07 kWh for every hour it runs.
Is that expensive compared with other states?: Rhode Island has the 7th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $20.60 a year.