What it costs to charge a 2026 Audi Q4 45 e-tron in Iowa

In Iowa, home electricity runs 13.77¢/kWh — put a 2026 Audi Q4 45 e-tron's EPA-rated 29.4 kWh/100mi against that and 100 miles costs $4.05, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 74.7% cheaper per mile than gasoline in Iowa — charging at home costs a fraction of what gas would here.

Annual cost, at 15 thousands miles a year

Home charging this 2026 Audi Q4 45 e-tron in Iowa runs about $607 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,796 saved annually, at this mileage.

Filling up the 2026 Audi Q4 45 e-tron, in dollars

$11.66 — that's what Iowa's 13.77¢/kWh rate puts on the 84.7 kWh a 2026 Audi Q4 45 e-tron needs for its full 288-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Audi Q4 45 e-tron in Iowa ranks 1,056 for cost savings versus gas — 1 being the best deal nationally. Separately, the Audi Q4 45 e-tron ranks 48 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.

Ask a licensed Iowa 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. Iowa's 13.77¢/kWh rate ranks 9 of 51 states; the state rate guide lays out the full spread.