How much does a refrigerator cost per month in Hawaii?

About $15.73 a month, assuming 400 kWh a year at 47.18¢/kWh.

How many kilowatt-hours does a refrigerator use?

Roughly 400 kWh a year under these assumptions.

Is that expensive compared with other states?

Hawaii has the most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $72.64 a year.

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Cost to run a refrigerator in Hawaii (August 2026 rates)

At 47.18¢ per kilowatt-hour — Hawaii's average residential price in August 2026 — running a refrigerator costs $189 a year. That is 160% more than the national average of $72.64. Hawaii's residential rate is up 22.5% from August 2025, which moves this appliance from $154 to $189 a year.

Per day: 51.7¢
Per month: $15.73
Per year: $189

Assumption: 400 kWh a year. A current ENERGY STAR top-freezer lands near 400 kWh a year. A 2000s-era side-by-side can be double, and a garage fridge in a hot climate higher still. Use the calculator to swap in the numbers from your own model.

How Hawaii compares

Hawaii pays 47.18¢/kWh, the most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $116 more a year than the typical U.S. household pays for the same use. Running the same refrigerator costs $50.88 a year in Nevada and $189 in Hawaii, so where you live changes this bill by $138 a year.

State	Rate	Per month	Per year
Alaska	29.41¢	$9.80	$118
California	29.75¢	$9.92	$119
Massachusetts	30.48¢	$10.16	$122
Maine	32.11¢	$10.70	$128
Hawaii	47.18¢	$15.73	$189

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

What else costs about the same in Hawaii

Desktop computer$189 a year in HI Air purifier$207 a year in HI Electric oven$157 a year in HI

Cutting the number down

The second fridge in the garage is often the most expensive appliance in a house, because it is usually the oldest one and it works against garage heat.
Coils packed with dust make the compressor run longer for the same cooling. Vacuuming them takes minutes.
A door gasket that no longer grips a dollar bill is leaking cold around the clock.

Questions

How much does a refrigerator cost per month in Hawaii?: About $15.73 a month, assuming 400 kWh a year at 47.18¢/kWh.
How many kilowatt-hours does a refrigerator use?: Roughly 400 kWh a year under these assumptions.
Is that expensive compared with other states?: Hawaii has the most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $72.64 a year.