How much does a laptop cost per month in Tennessee?

About $1.37 a month, assuming 60 W, 8 hours a day, 250 days a year at 13.71¢/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?

Tennessee has the 5th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $21.97 a year.

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Cost to run a laptop in Tennessee (July 2026 rates)

At 13.71¢ per kilowatt-hour — Tennessee's average residential price in July 2026 — running a laptop costs $16.45 a year. That is 25% less than the national average of $21.97. Tennessee's residential rate is up 3.8% from July 2025, which moves this appliance from $15.85 to $16.45 a year.

Per hour: 0.8¢
Per day of use: 6.6¢
Per month: $1.37
Per year: $16.45

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 Tennessee compares

Tennessee pays 13.71¢/kWh, the 5th cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $5.52 less 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
Utah	13.12¢	$1.31	$15.74
North Dakota	13.41¢	$1.34	$16.09
Tennessee	13.71¢	$1.37	$16.45
Idaho	13.73¢	$1.37	$16.48
Nebraska	13.78¢	$1.38	$16.54

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

What else costs about the same in Tennessee

Air fryer$17.27 a year in TN Box fan$15.42 a year in TN Washing machine$17.82 a year in TN

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 Tennessee?: About $1.37 a month, assuming 60 W, 8 hours a day, 250 days a year at 13.71¢/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?: Tennessee has the 5th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $21.97 a year.