Cost to Run a Desktop Computer in Arizona
Arizona's average residential electricity rate is 15.5¢/kWh as of April 2026 — the 20th cheapest in the country, 18% below the U.S. average. At typical usage (6 hours/day), a desktop computer here costs $5.82 per month.
Per hour
3.1¢
at 100–400 W
Per day
$0.19
6 hours/day
Per month
$5.82
38 kWh
Per year
$69.93
451 kWh
By usage level in Arizona
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (3 hrs/day) | $0.10 | $2.91 | $34.96 |
| Typical (6 hrs/day) | $0.19 | $5.82 | $69.93 |
| Heavy (12 hrs/day) | $0.38 | $11.65 | $140 |
Arizona vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a desktop computer in Arizona?
At Arizona's current average residential rate of 15.5¢/kWh (April 2026), a desktop computer with typical usage costs about $0.19 per day, $5.82 per month, or $69.93 per year.
Is running a desktop computer in Arizona more expensive than average?
No — it's cheaper. Arizona's rate is about 18% below the U.S. average: $5.82 per month here versus $7.06 nationally.
What does electricity cost in Arizona right now?
Arizona residents pay an average of 15.5¢ per kWh as of April 2026 — the 20th cheapest rate of the 51 U.S. jurisdictions we track.