Cost to Charge a BMW i5 in Wisconsin

$18.54 for a full charge at 19.56¢/kWh — $5.65 per 100 miles, about $678 a year.

BMW i5 in Wisconsin

$18.54 for a full charge

Per 100 miles: $5.65
Per mile: $0.06
Per year: $678
vs petrol / yr: $956

Electricity per year
Petrol per year

The full picture

Charging cost breakdown for a BMW i5
Item	Energy	Cost
This charge	94.8 kWh	$18.54
Full charge (0–100%)	94.8 kWh	$18.54
Per 100 miles	28.9 kWh	$5.65
Per year (12,000 mi)	3468.0 kWh	$678
Same year on petrol (30 mpg)	—	$1,634
Difference	—	$956

What charging actually costs here

Filling a BMW i5 from empty in Wisconsin costs $18.54. The car draws 94.8 kWh from the wall for a full 328-mile charge, and Wisconsin residential electricity averages 19.56¢ per kWh. That works out at $5.65 per 100 miles, or $0.06 a mile.

Against a petrol car doing 30 mpg at $4.09 a gallon, electricity here is 2.4× cheaper per mile: $5.65 versus $13.62 per 100 miles. Over 12,000 miles a year that is $956 saved.

Similar EVs in Wisconsin

Charging cost of comparable EVs in Wisconsin
Vehicle	Per 100 mi	Full charge	Per year
BMW iX	28.6 kWh	$24.28	$671
Fiat 500e	29.2 kWh	$8.51	$685
Audi Q4 e-tron	29.4 kWh	$16.56	$690
Hyundai Ioniq 6	28 kWh	$17.31	$657
Subaru Solterra	28 kWh	$15.77	$657
Toyota bZ	28 kWh	$15.77	$657

The same car in nearby-priced states

Charging a BMW i5 in states with similar electricity prices
State	¢/kWh	Full charge	Per year
Minnesota	17.52	$16.61	$608
Ohio	19.19	$18.19	$666
Delaware	19.29	$18.29	$669
Illinois	19.89	$18.85	$690
Pennsylvania	21.73	$20.60	$754
Maryland	21.84	$20.70	$757

Frequently asked questions

How much does it cost to charge a BMW i5 in Wisconsin?

$18.54 for a full charge from empty. The car needs 94.8 kWh at the wall and Wisconsin residential electricity averages 19.56¢ per kWh.

How much does a BMW i5 cost per mile in Wisconsin?

About $0.06 a mile, or $5.65 per 100 miles. Over 12,000 miles a year that is roughly $678 of electricity.

Is charging a BMW i5 cheaper than petrol in Wisconsin?

Yes — 2.4 times cheaper per mile. Electricity costs $5.65 per 100 miles here against $13.62 for a 30 mpg petrol car at $4.09 a gallon, a saving of about $956 a year.

How long does a full charge last?

The EPA rates the BMW i5 at 328 miles combined. Cold weather, motorway speeds and a loaded car all reduce that; the EPA number is a standardised test, not a guarantee.

Does this include charging losses?

Yes. The EPA's 28.9 kWh/100 mi figure is measured at the wall socket, so the energy lost in the charger and cabling is already in the number. No extra efficiency factor is applied.

Vehicle data: EPA fueleconomy.gov, model years 2025-2027. Electricity: EIA Electric Power Monthly Table 5.6.A, residential, June 2026. Petrol: EIA weekly retail gasoline price, 24 August 2026.

Estimates for informational purposes only. Real charging cost depends on your tariff, time of use, charger efficiency, temperature, driving style and state of charge. EPA figures are a standardised test result, not a promise about your car.