Charging a 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels) at home in Iowa

A 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels) draws 33.4 kWh per 100 miles per the EPA; at Iowa's 13.77¢/kWh residential rate that's $4.6 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 71.3% cheaper per mile than gasoline in Iowa — charging at home costs a fraction of what gas would here.

What a year of driving costs

Iowa owners putting 15,000 annual miles on a 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels) spend about $690 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,713 saved annually, at this mileage.

What one full charge costs

At Iowa's rate, fully covering this 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels)'s 287-mile EPA range costs about $13.2 (95.9 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels) in Iowa ranks 2,748 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i4 xDrive40 Gran Coupe (18 inch Wheels) ranks 114 of 400 EV models for raw efficiency, and Iowa ranks 9 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.

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

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Iowa's 13.77¢/kWh compares? The guide to charging cost by state ranks every state side by side.