2027 BMW iX3 50 xDrive (21 inch Summer Tires): home charging cost in Illinois
At Illinois's residential electricity rate of 19.22¢/kWh, a 2027 BMW iX3 50 xDrive (21 inch Summer Tires) (rated 32 kWh per 100 miles by the EPA) costs $6.15 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. Charging at home is much cheaper than gas here: 61.6% less than gas per mile, here specifically.
2027 BMW iX3 50 xDrive (21 inch Summer Tires): yearly cost in Illinois
Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 BMW iX3 50 xDrive (21 inch Summer Tires) charged at home in Illinois costs about $922/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,481 a year.
Filling up the 2027 BMW iX3 50 xDrive (21 inch Summer Tires), in dollars
A 2027 BMW iX3 50 xDrive (21 inch Summer Tires) needs roughly 127.3 kWh to reach its EPA-rated 398-mile range, which runs about $24.47 at 19.22¢/kWh in Illinois.
How this compares nationally
This combination ranks 10,094 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW iX3 50 xDrive (21 inch Summer Tires) alone ranks 87 of 400 models for efficiency; Illinois alone ranks 36 of 51 states for electricity price.
Before you install a home charger in Illinois
The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.
Line up a few Illinois electrician quotes for Level 2 install before you commit either way.
Where these figures come from
The methodology guide names the exact EIA and EPA tables behind this page's numbers. Illinois's 19.22¢/kWh rate ranks 36 of 51 states; the state rate guide lays out the full spread.