How much does a gaming PC cost per month in Wisconsin?

About $9.45 a month, assuming 400 W, 4 hours a day, 365 days a year at 19.41¢/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?

Wisconsin has the 16th 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 Wisconsin (August 2026 rates)

At 19.41¢ per kilowatt-hour — Wisconsin's average residential price in August 2026 — running a gaming PC costs $113 a year. That is 7% more than the national average of $106. Wisconsin's residential rate is up 5.3% from August 2025, which moves this appliance from $108 to $113 a year.

Per hour: 7.8¢
Per day of use: 31.1¢
Per month: $9.45
Per year: $113

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 Wisconsin compares

Wisconsin pays 19.41¢/kWh, the 16th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $7.30 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
Illinois	19.32¢	$9.40	$113
Ohio	19.38¢	$9.43	$113
Wisconsin	19.41¢	$9.45	$113
Maryland	21.40¢	$10.41	$125
Pennsylvania	21.77¢	$10.59	$127

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

What else costs about the same in Wisconsin

Aquarium$115 a year in WI Well pump$106 a year in WI Dehumidifier$105 a year in WI

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 Wisconsin?: About $9.45 a month, assuming 400 W, 4 hours a day, 365 days a year at 19.41¢/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?: Wisconsin has the 16th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $106 a year.