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

About $7.26 a month, assuming 400 W, 4 hours a day, 365 days a year at 14.91¢/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?

Washington has the 13th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $107 a year.

Home › Gaming pc › Washington

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

At 14.91¢ per kilowatt-hour — Washington's average residential price in June 2026 — running a gaming PC costs $87.07 a year. That is 19% less than the national average of $107. Washington's residential rate is up 15.0% from June 2025, which moves this appliance from $75.69 to $87.07 a year.

Per hour: 6.0¢
Per day of use: 23.9¢
Per month: $7.26
Per year: $87.07

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 Washington compares

Washington pays 14.91¢/kWh, the 13th cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $20.03 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
North Carolina	14.74¢	$7.17	$86.08
Mississippi	14.88¢	$7.24	$86.90
Washington	14.91¢	$7.26	$87.07
New Mexico	15.06¢	$7.33	$87.95
Florida	15.10¢	$7.35	$88.18

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

What else costs about the same in Washington

Aquarium$88.16 a year in WA Well pump$81.63 a year in WA Dehumidifier$80.51 a year in WA

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 Washington?: About $7.26 a month, assuming 400 W, 4 hours a day, 365 days a year at 14.91¢/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?: Washington has the 13th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $107 a year.