How much does a gaming PC cost per month in New Jersey?

About $11.98 a month, assuming 400 W, 4 hours a day, 365 days a year at 24.61¢/kWh.

How many kilowatt-hours does a gaming PC use?

Roughly 584 kWh a year under these assumptions, or 0.40 kWh for every hour it runs.

Is that expensive compared with other states?

New Jersey has the 10th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $106 a year.

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Cost to run a gaming PC in New Jersey (August 2026 rates)

At 24.61¢ per kilowatt-hour — New Jersey's average residential price in August 2026 — running a gaming PC costs $144 a year. That is 36% more than the national average of $106.

Per hour: 9.8¢
Per day of use: 39.4¢
Per month: $11.98
Per year: $144

Assumption: 400 W, 4 hours a day, 365 days a year — 584 kWh a year. Under load with a mid-to-high-end GPU. Idling at the desktop is closer to 80 W, and the monitor is on top of this. Use the calculator to swap in the numbers from your own model.

How New Jersey compares

New Jersey pays 24.61¢/kWh, the 10th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $37.67 more a year than the typical U.S. household pays for the same use. Running the same gaming PC costs $74.28 a year in Nevada and $276 in Hawaii, so where you live changes this bill by $201 a year.

State	Rate	Per month	Per year
Vermont	23.84¢	$11.60	$139
Connecticut	24.51¢	$11.93	$143
New Jersey	24.61¢	$11.98	$144
District of Columbia	25.98¢	$12.64	$152
New Hampshire	27.64¢	$13.45	$161

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

What else costs about the same in New Jersey

Aquarium$146 a year in NJ Well pump$135 a year in NJ Dehumidifier$133 a year in NJ

Cutting the number down

Capping frame rate to the monitor's refresh rate cuts GPU draw substantially with no visible difference.
Sleep rather than idle: a machine left at the desktop overnight can use more in a year than the gaming itself.
Undervolting a modern GPU typically trims power meaningfully at near-identical performance.

Questions

How much does a gaming PC cost per month in New Jersey?: About $11.98 a month, assuming 400 W, 4 hours a day, 365 days a year at 24.61¢/kWh.
How many kilowatt-hours does a gaming PC use?: Roughly 584 kWh a year under these assumptions, or 0.40 kWh for every hour it runs.
Is that expensive compared with other states?: New Jersey has the 10th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $106 a year.