How much does a laptop cost per month in District of Columbia?

About $2.52 a month, assuming 60 W, 8 hours a day, 250 days a year at 25.21¢/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?

District of Columbia has the 9th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $21.97 a year.

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Cost to run a laptop in District of Columbia (July 2026 rates)

At 25.21¢ per kilowatt-hour — District of Columbia's average residential price in July 2026 — running a laptop costs $30.25 a year. That is 38% more than the national average of $21.97. District of Columbia's residential rate is up 9.4% from July 2025, which moves this appliance from $27.65 to $30.25 a year.

Per hour: 1.5¢
Per day of use: 12.1¢
Per month: $2.52
Per year: $30.25

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 District of Columbia compares

District of Columbia pays 25.21¢/kWh, the 9th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $8.28 more a year than the typical U.S. household pays for the same use. Running the same laptop costs $15.26 a year in Louisiana and $57.60 in Hawaii, so where you live changes this bill by $42.34 a year.

State	Rate	Per month	Per year
Connecticut	24.16¢	$2.42	$28.99
New Jersey	25.19¢	$2.52	$30.23
District of Columbia	25.21¢	$2.52	$30.25
New Hampshire	26.60¢	$2.66	$31.92
Rhode Island	28.29¢	$2.83	$33.95

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

What else costs about the same in District of Columbia

Air fryer$31.76 a year in DC Box fan$28.36 a year in DC Washing machine$32.77 a year in DC

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 District of Columbia?: About $2.52 a month, assuming 60 W, 8 hours a day, 250 days a year at 25.21¢/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?: District of Columbia has the 9th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $21.97 a year.