Cost to Run a Desktop Computer in Maryland
Maryland's average residential electricity rate is 21.4¢/kWh as of July 2026 — the 37th cheapest in the country, 17% above the U.S. average. At typical usage (6 hours/day), a desktop computer here costs $8.04 per month.
Per hour
4.3¢
at 100–400 W
Per day
$0.26
6 hours/day
Per month
$8.04
38 kWh
Per year
$96.54
451 kWh
By usage level in Maryland
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (3 hrs/day) | $0.13 | $4.02 | $48.27 |
| Typical (6 hrs/day) | $0.26 | $8.04 | $96.54 |
| Heavy (12 hrs/day) | $0.53 | $16.08 | $193 |
Maryland 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 Maryland?
At Maryland's current average residential rate of 21.4¢/kWh (July 2026), a desktop computer with typical usage costs about $0.26 per day, $8.04 per month, or $96.54 per year.
Is running a desktop computer in Maryland more expensive than average?
Yes. Maryland's electricity costs about 17% more than the U.S. average, so the same usage costs $8.04 per month here versus $6.88 nationally.
What does electricity cost in Maryland right now?
Maryland residents pay an average of 21.4¢ per kWh as of July 2026 — the 37th cheapest rate of the 51 U.S. jurisdictions we track.