How much does a laptop cost per month in Delaware?

About $1.87 a month, assuming 60 W, 8 hours a day, 250 days a year at 18.70¢/kWh.

How many kilowatt-hours does a laptop use?

Roughly 120 kWh a year under these assumptions, or 0.06 kWh for every hour it runs.

Is that expensive compared with other states?

Delaware has the 19th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $21.79 a year.

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Cost to run a laptop in Delaware (August 2026 rates)

At 18.70¢ per kilowatt-hour — Delaware's average residential price in August 2026 — running a laptop costs $22.44 a year. That is 3% more than the national average of $21.79. Delaware's residential rate is up 11.0% from August 2025, which moves this appliance from $20.22 to $22.44 a year.

Per hour: 1.1¢
Per day of use: 9.0¢
Per month: $1.87
Per year: $22.44

Assumption: 60 W, 8 hours a day, 250 days a year — 120 kWh a year. Charging and working. Once the battery is full, draw drops toward 20 to 30 W for light work. Use the calculator to swap in the numbers from your own model.

How Delaware compares

Delaware pays 18.70¢/kWh, the 19th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to 64.8¢ more a year than the typical U.S. household pays for the same use. Running the same laptop costs $15.26 a year in Nevada and $56.62 in Hawaii, so where you live changes this bill by $41.35 a year.

State	Rate	Per month	Per year
Minnesota	17.20¢	$1.72	$20.64
Virginia	17.64¢	$1.76	$21.17
Delaware	18.70¢	$1.87	$22.44
Illinois	19.32¢	$1.93	$23.18
Ohio	19.38¢	$1.94	$23.26

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

What else costs about the same in Delaware

Air fryer$23.56 a year in DE Box fan$21.04 a year in DE Washing machine$24.31 a year in DE

Cutting the number down

A laptop typically uses a fifth to a tenth of what a comparable desktop does for ordinary work.
The charger left plugged in with no laptop attached draws almost nothing on modern units.

Questions

How much does a laptop cost per month in Delaware?: About $1.87 a month, assuming 60 W, 8 hours a day, 250 days a year at 18.70¢/kWh.
How many kilowatt-hours does a laptop use?: Roughly 120 kWh a year under these assumptions, or 0.06 kWh for every hour it runs.
Is that expensive compared with other states?: Delaware has the 19th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $21.79 a year.