How much does an electric lawn mower cost per month in Hawaii?

About $1.64 a month, assuming 0.80 kWh per cycle, 1 cycles a week at 47.18¢/kWh.

How many kilowatt-hours does an electric lawn mower use?

Roughly 42 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 $7.55 a year.

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Cost to run an electric lawn mower in Hawaii (August 2026 rates)

At 47.18¢ per kilowatt-hour — Hawaii's average residential price in August 2026 — running an electric lawn mower costs $19.63 a year. That is 160% more than the national average of $7.55. Hawaii's residential rate is up 22.5% from August 2025, which moves this appliance from $16.03 to $19.63 a year.

Per cycle: 37.7¢
Per day: 5.4¢
Per month: $1.64
Per year: $19.63

Assumption: 0.80 kWh per cycle, 1 cycles a week — 42 kWh a year. One mow of a typical suburban lawn, battery or corded. 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 $12.07 more a year than the typical U.S. household pays for the same use. Running the same electric lawn mower costs $5.29 a year in Nevada and $19.63 in Hawaii, so where you live changes this bill by $14.34 a year.

State	Rate	Per month	Per year
Alaska	29.41¢	$1.02	$12.23
California	29.75¢	$1.03	$12.38
Massachusetts	30.48¢	$1.06	$12.68
Maine	32.11¢	$1.11	$13.36
Hawaii	47.18¢	$1.64	$19.63

States ranked by average residential price, cheapest first. See all 51 states for an electric lawn mower.

What else costs about the same in Hawaii

Rice cooker$19.82 a year in HI Electric pressure cooker$19.82 a year in HI Security camera$20.66 a year in HI

Cutting the number down

A season of mowing costs less than a single tank of gasoline, which is the real argument for the switch.
A sharp blade cuts the load on the motor and the runtime for the same lawn.

Questions

How much does an electric lawn mower cost per month in Hawaii?: About $1.64 a month, assuming 0.80 kWh per cycle, 1 cycles a week at 47.18¢/kWh.
How many kilowatt-hours does an electric lawn mower use?: Roughly 42 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 $7.55 a year.