How much does a coffee maker cost per month in Hawaii?

About $6.46 a month, assuming 900 W, 30 minutes a day, 365 days a year at 47.18¢/kWh.

How many kilowatt-hours does a coffee maker use?

Roughly 164 kWh a year under these assumptions, or 0.90 kWh for every hour it runs.

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 $29.83 a year.

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Cost to run a coffee maker in Hawaii (August 2026 rates)

At 47.18¢ per kilowatt-hour — Hawaii's average residential price in August 2026 — running a coffee maker costs $77.49 a year. That is 160% more than the national average of $29.83. Hawaii's residential rate is up 22.5% from August 2025, which moves this appliance from $63.29 to $77.49 a year.

Per hour: 42.5¢
Per day of use: 21.2¢
Per month: $6.46
Per year: $77.49

Assumption: 900 W, 30 minutes a day, 365 days a year — 164 kWh a year. Ten minutes of brewing plus 20 minutes on the warming plate. 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 $47.67 more a year than the typical U.S. household pays for the same use. Running the same coffee maker costs $20.89 a year in Nevada and $77.49 in Hawaii, so where you live changes this bill by $56.60 a year.

State	Rate	Per month	Per year
Alaska	29.41¢	$4.03	$48.31
California	29.75¢	$4.07	$48.86
Massachusetts	30.48¢	$4.17	$50.06
Maine	32.11¢	$4.40	$52.74
Hawaii	47.18¢	$6.46	$77.49

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

What else costs about the same in Hawaii

55-inch led tv$77.49 a year in HI Washing machine$61.33 a year in HI Air fryer$59.45 a year in HI

Cutting the number down

The warming plate, not the brew, is where the hours go. Decanting into a thermal carafe removes it entirely.
Single-serve pod machines heat less water per cup but idle at temperature; the two effects roughly cancel.

Questions

How much does a coffee maker cost per month in Hawaii?: About $6.46 a month, assuming 900 W, 30 minutes a day, 365 days a year at 47.18¢/kWh.
How many kilowatt-hours does a coffee maker use?: Roughly 164 kWh a year under these assumptions, or 0.90 kWh for every hour it runs.
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 $29.83 a year.