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

About $9.34 a month, assuming 400 W, 4 hours a day, 365 days a year at 19.19¢/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?

Ohio has the 19th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $107 a year.

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

At 19.19¢ per kilowatt-hour — Ohio's average residential price in June 2026 — running a gaming PC costs $112 a year. That is 5% more than the national average of $107. Ohio's residential rate is up 9.7% from June 2025, which moves this appliance from $102 to $112 a year.

Per hour: 7.7¢
Per day of use: 30.7¢
Per month: $9.34
Per year: $112

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 Ohio compares

Ohio pays 19.19¢/kWh, the 19th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $4.96 more 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
Indiana	17.51¢	$8.52	$102
Minnesota	17.52¢	$8.53	$102
Ohio	19.19¢	$9.34	$112
Delaware	19.29¢	$9.39	$113
Wisconsin	19.56¢	$9.52	$114

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

What else costs about the same in Ohio

Aquarium$113 a year in OH Well pump$105 a year in OH Dehumidifier$104 a year in OH

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 Ohio?: About $9.34 a month, assuming 400 W, 4 hours a day, 365 days a year at 19.19¢/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?: Ohio has the 19th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $107 a year.