Cost to Run a Garage Heater in Illinois
Illinois's average residential electricity rate is 20.5¢/kWh as of April 2026 — the 36th cheapest in the country, 9% above the U.S. average. At typical usage (3 hours/day), a garage heater here costs $93.48 per month.
Per hour
$1.02
at 2,400–7,500 W
Per day
$3.07
3 hours/day
Per month
$93.48
456 kWh
Per year
$1,122
5,475 kWh
By usage level in Illinois
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (1.5 hrs/day) | $1.54 | $46.74 | $561 |
| Typical (3 hrs/day) | $3.07 | $93.48 | $1,122 |
| Heavy (6 hrs/day) | $6.15 | $187 | $2,245 |
Illinois vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a garage heater in Illinois?
At Illinois's current average residential rate of 20.5¢/kWh (April 2026), a garage heater with typical usage costs about $3.07 per day, $93.48 per month, or $1,122 per year.
Is running a garage heater in Illinois more expensive than average?
Yes. Illinois's electricity costs about 9% more than the U.S. average, so the same usage costs $93.48 per month here versus $85.73 nationally.
What does electricity cost in Illinois right now?
Illinois residents pay an average of 20.5¢ per kWh as of April 2026 — the 36th cheapest rate of the 51 U.S. jurisdictions we track.