What it costs to charge a 2027 BMW i7 xDrive60 Sedan (21 inch All-Season Tires) in Montana

In Montana, home electricity runs 13.77¢/kWh — put a 2027 BMW i7 xDrive60 Sedan (21 inch All-Season Tires)'s EPA-rated 38.4 kWh/100mi against that and 100 miles costs $5.28, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 67% cheaper per mile than gasoline in Montana — charging at home costs a fraction of what gas would here.

2027 BMW i7 xDrive60 Sedan (21 inch All-Season Tires): yearly cost in Montana

Home charging this 2027 BMW i7 xDrive60 Sedan (21 inch All-Season Tires) in Montana runs about $793 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,610 saved annually, at this mileage.

What one full charge costs

$18.18 — that's what Montana's 13.77¢/kWh rate puts on the 132 kWh a 2027 BMW i7 xDrive60 Sedan (21 inch All-Season Tires) needs for its full 344-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 BMW i7 xDrive60 Sedan (21 inch All-Season Tires) in Montana ranks 5,897 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i7 xDrive60 Sedan (21 inch All-Season Tires) ranks 223 of 400 EV models for raw efficiency, and Montana ranks 10 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 BMW i7 xDrive60 Sedan (21 inch All-Season Tires) at home

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.

Get quotes from local electricians for Level 2 charger installation in Montana before deciding.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 13.77¢/kWh, Montana sits in the middle of the national range — the guide to why charging cost varies by state shows where.