What it costs to charge a 2026 BMW iX xDrive45 (22 inch Wheels) in Montana

In Montana, home electricity runs 13.77¢/kWh — put a 2026 BMW iX xDrive45 (22 inch Wheels)'s EPA-rated 40.3 kWh/100mi against that and 100 miles costs $5.54, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 65.4% cheaper per mile than gasoline in Montana — charging at home costs a fraction of what gas would here.

What a year of driving costs

Home charging this 2026 BMW iX xDrive45 (22 inch Wheels) in Montana runs about $832 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,571 saved annually, at this mileage.

What one full charge costs

$15.47 — that's what Montana's 13.77¢/kWh rate puts on the 112.3 kWh a 2026 BMW iX xDrive45 (22 inch Wheels) needs for its full 279-mile EPA range.

2026 BMW iX xDrive45 (22 inch Wheels) in Montana, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 BMW iX xDrive45 (22 inch Wheels) in Montana ranks 7,195 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW iX xDrive45 (22 inch Wheels) ranks 273 of 400 EV models for raw efficiency, and Montana ranks 10 of 51 for cheapest residential electricity.

Next step: home charger installation

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Ask a licensed Montana electrician to quote the install before this math becomes a real decision.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Montana's 13.77¢/kWh rate ranks 10 of 51 states; the state rate guide lays out the full spread.