Energy Calculators

Montana electric bill calculator

Estimate a monthly electricity bill in Montana from your usage and the state’s average residential price.

A Montana household using the state average of 853 kWh a month (2025) would pay about $132.81 a month at the August 2026 average price of 15.57¢/kWh (EIA).

Pre-fills the average price (Aug 2026) and typical use (EIA).

kWh

Average for Montana: 853 kWh/month (2025, EIA). Your bill shows your actual use.

¢/kWh
Estimated monthly bill
$132.81
Per year
$1,594
Monthly bill at 15.57¢/kWh
Monthly useBill
500 kWh$77.85
750 kWh$116.78
1,000 kWh$155.70
1,500 kWh$233.55
2,000 kWh$311.40

Formula: monthly bill = kWh used × average price per kWh. EIA’s average price already includes fixed monthly charges, spread over all kWh.

Inputs used: use: 853 kWh/month; rate: 15.57¢/kWh; state: Montana.

These are estimates, not financial advice.

Source: U.S. Energy Information Administration (Aug 2026). About our data

Typical monthly bill
$132.81853 kWh × 15.57¢/kWh
vs U.S. typical bill
−16.3%U.S.: $158.72
Rank (1 = highest bill)
42ndof 51

Montana bills at common usage levels

Monthly useBill at 15.57¢/kWh
500 kWh$77.85
750 kWh$116.78
1,000 kWh$155.70
1,500 kWh$233.55
2,000 kWh$311.40

Average monthly bill over the last 12 months

Montana average residential electric bill per customer by monthMontana average bill: $104 in Sep 2025, $122 in Aug 2026. Low $95, high $141.$80$100$120$140$160Nov 2025Feb 2026May 2026Aug 2026
· dollars per customer per month
Show data table
MonthMontana average bill
Aug 2026$122
Jul 2026$133
Jun 2026$102
May 2026$102
Apr 2026$109
Mar 2026$118
Feb 2026$130
Jan 2026$141
Dec 2025$127
Nov 2025$99
Oct 2025$95
Sep 2025$104

Source: U.S. Energy Information Administration (Aug 2026). About our data

States with similar typical bills

How we calculate

bill = kWh × average price per kWh. Typical use is Montana’s 2025 residential sales divided by residential customers and 12 months. The monthly chart uses each month’s sales per customer × that month’s price.

See the methodology for details.

Frequently asked questions

What is the average electric bill in Montana?

About $132.81 a month for a household using the Montana average of 853 kWh (2025) at the August 2026 price of 15.57¢/kWh. That is −16.3% versus the U.S. figure calculated the same way ($158.72).

When are Montana electric bills highest?

Over the last 12 months with published data, the average residential bill was highest in January 2026 ($141.32) and lowest in October 2025 ($94.58), based on EIA sales, customers and prices.

Does this include fixed charges and taxes?

EIA’s average price is total residential revenue divided by kWh sold, so fixed customer charges are included, spread over all kWh. Taxes and fees collected on behalf of governments may not be fully included, so actual bills can be somewhat higher.

Data last updated: