Cost to Run a Incandescent Bulb in Oklahoma
Oklahoma's average residential electricity rate is 13.4¢/kWh as of May 2026 — the 3rd cheapest in the country, 27% below the U.S. average. At typical usage (5 hours/day), a incandescent bulb here costs $1.22 per month.
Per hour
0.8¢
at 40–100 W
Per day
4.0¢
5 hours/day
Per month
$1.22
9.1 kWh
Per year
$14.67
110 kWh
By usage level in Oklahoma
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (2.5 hrs/day) | 2.0¢ | $0.61 | $7.34 |
| Typical (5 hrs/day) | 4.0¢ | $1.22 | $14.67 |
| Heavy (10 hrs/day) | 8.0¢ | $2.44 | $29.35 |
Oklahoma vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a incandescent bulb in Oklahoma?
At Oklahoma's current average residential rate of 13.4¢/kWh (May 2026), a incandescent bulb with typical usage costs about 4.0¢ per day, $1.22 per month, or $14.67 per year.
Is running a incandescent bulb in Oklahoma more expensive than average?
No — it's cheaper. Oklahoma's rate is about 27% below the U.S. average: $1.22 per month here versus $1.68 nationally.
What does electricity cost in Oklahoma right now?
Oklahoma residents pay an average of 13.4¢ per kWh as of May 2026 — the 3rd cheapest rate of the 51 U.S. jurisdictions we track.