Cost to Run a Garage Heater in Montana
Montana's average residential electricity rate is 13.9¢/kWh as of April 2026 — the 7th cheapest in the country, 26% below the U.S. average. At typical usage (3 hours/day), a garage heater here costs $63.38 per month.
Per hour
$0.70
at 2,400–7,500 W
Per day
$2.08
3 hours/day
Per month
$63.38
456 kWh
Per year
$761
5,475 kWh
By usage level in Montana
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (1.5 hrs/day) | $1.04 | $31.69 | $381 |
| Typical (3 hrs/day) | $2.08 | $63.38 | $761 |
| Heavy (6 hrs/day) | $4.17 | $127 | $1,522 |
Montana 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 Montana?
At Montana's current average residential rate of 13.9¢/kWh (April 2026), a garage heater with typical usage costs about $2.08 per day, $63.38 per month, or $761 per year.
Is running a garage heater in Montana more expensive than average?
No — it's cheaper. Montana's rate is about 26% below the U.S. average: $63.38 per month here versus $85.73 nationally.
What does electricity cost in Montana right now?
Montana residents pay an average of 13.9¢ per kWh as of April 2026 — the 7th cheapest rate of the 51 U.S. jurisdictions we track.