WattCost

Data through April 2026

Cost to run · Hawaii · 46.6¢/kWh residential average

How much does it cost to run a dishwasher in Hawaii?

$111/yr · median certified model

Hawaii is the extreme case for U.S. electricity costs: 46.6¢/kWh, roughly 2.5× the national average. The median certified dishwasher costs about $111 a year here — the same appliance would cost $45 at national-average rates. In this rate environment, the gap between an efficient and an inefficient dishwasher is often larger than the appliance's purchase-price difference over its lifetime.

Hawaii sits at rank 51 of 51 — near the very top of the cost table for a dishwasher. Model choice matters as much as geography: at Hawaii rates the most efficient certified model (Loch L1126) costs $37 a year while the most power-hungry (Amana ADFS2524R) costs $112 — a spread of $75 every year. For reference, the national extremes are North Dakota (12.3¢/kWh) and Hawaii (46.6¢/kWh); the same median dishwasher would cost $30 and $111 a year there.

Hawaii
$111
US average
$45
North Dakota
$30
Hawaii
$111
Median certified dishwasher (239 kWh/yr) per year, at each rate

The cheapest dishwashers to run at Hawaii rates

Price any model at Hawaii rates

Your rate, your numbers

Per day
31¢
Per month
$9.29
Per year
$111

239 kWh/yr × 46.6¢/kWh = $111/yr

Prefilled with the median certified dishwasher (239 kWh/yr). Every model page on this site carries its exact certified figure.

Questions, answered with the data

How much does it cost to run a dishwasher in Hawaii?
About $111 a year for the median ENERGY STAR certified dishwasher, at Hawaii's average residential rate of 46.6¢/kWh — that's $9.29 a month.
Is electricity expensive in Hawaii?
Hawaii's residential average of 46.6¢/kWh is 148% above the U.S. average of 18.8¢/kWh, ranking 51 of 51 jurisdictions (1 = cheapest).
What's the cheapest dishwasher to run in Hawaii?
Among currently certified models, the Loch L1126 costs the least at about $37 a year at Hawaii rates (80 kWh/yr).
How does Hawaii compare with other states?
The same median dishwasher costs $30 a year in North Dakota (the cheapest state) and $111 in Hawaii (the priciest). Hawaii sits at $111.

Keep digging

Rate source: US EIA, average residential price of electricity, see methodology.