Cost to Run a Incandescent Bulb in Oklahoma
Oklahoma's average residential electricity rate is 14.4¢/kWh as of July 2026 — the 10th cheapest in the country, 21% below the U.S. average. At typical usage (5 hours/day), a incandescent bulb here costs $1.31 per month.
Per hour
0.9¢
at 40–100 W
Per day
4.3¢
5 hours/day
Per month
$1.31
9.1 kWh
Per year
$15.77
110 kWh
By usage level in Oklahoma
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (2.5 hrs/day) | 2.2¢ | $0.66 | $7.88 |
| Typical (5 hrs/day) | 4.3¢ | $1.31 | $15.77 |
| Heavy (10 hrs/day) | 8.6¢ | $2.63 | $31.54 |
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 14.4¢/kWh (July 2026), a incandescent bulb with typical usage costs about 4.3¢ per day, $1.31 per month, or $15.77 per year.
Is running a incandescent bulb in Oklahoma more expensive than average?
No — it's cheaper. Oklahoma's rate is about 21% below the U.S. average: $1.31 per month here versus $1.67 nationally.
What does electricity cost in Oklahoma right now?
Oklahoma residents pay an average of 14.4¢ per kWh as of July 2026 — the 10th cheapest rate of the 51 U.S. jurisdictions we track.