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

About $7.42 a month, assuming 400 W, 4 hours a day, 365 days a year at 15.24¢/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?

Wyoming has the 18th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $107 a year.

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Cost to run a gaming PC in Wyoming (June 2026 rates)

At 15.24¢ per kilowatt-hour — Wyoming's average residential price in June 2026 — running a gaming PC costs $89.00 a year. That is 17% less than the national average of $107. Wyoming's residential rate is up 2.4% from June 2025, which moves this appliance from $86.96 to $89.00 a year.

Per hour: 6.1¢
Per day of use: 24.4¢
Per month: $7.42
Per year: $89.00

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 Wyoming compares

Wyoming pays 15.24¢/kWh, the 18th cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $18.10 less a year than the typical U.S. household pays for the same use. Running the same gaming PC costs $76.56 a year in Nevada and $308 in Hawaii, so where you live changes this bill by $231 a year.

State	Rate	Per month	Per year
Montana	15.14¢	$7.37	$88.42
Arizona	15.18¢	$7.39	$88.65
Wyoming	15.24¢	$7.42	$89.00
South Dakota	15.36¢	$7.48	$89.70
West Virginia	15.45¢	$7.52	$90.23

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

What else costs about the same in Wyoming

Aquarium$90.11 a year in WY Well pump$83.44 a year in WY Dehumidifier$82.30 a year in WY

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 Wyoming?: About $7.42 a month, assuming 400 W, 4 hours a day, 365 days a year at 15.24¢/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?: Wyoming has the 18th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $107 a year.