Cost to Charge a Tesla Model S in Illinois

$22.10 for a full charge at 19.89¢/kWh — $5.39 per 100 miles, about $647 a year.

Tesla Model S in Illinois

$22.10 for a full charge

Per 100 miles: $5.39
Per mile: $0.05
Per year: $647
vs petrol / yr: $987

Electricity per year
Petrol per year

The full picture

Charging cost breakdown for a Tesla Model S
Item	Energy	Cost
This charge	111.1 kWh	$22.10
Full charge (0–100%)	111.1 kWh	$22.10
Per 100 miles	27.1 kWh	$5.39
Per year (12,000 mi)	3252.0 kWh	$647
Same year on petrol (30 mpg)	—	$1,634
Difference	—	$987

What charging actually costs here

Filling a Tesla Model S from empty in Illinois costs $22.10. The car draws 111.1 kWh from the wall for a full 410-mile charge, and Illinois residential electricity averages 19.89¢ per kWh. That works out at $5.39 per 100 miles, or $0.05 a mile.

Against a petrol car doing 30 mpg at $4.09 a gallon, electricity here is 2.5× cheaper per mile: $5.39 versus $13.62 per 100 miles. Over 12,000 miles a year that is $987 saved.

Similar EVs in Illinois

Charging cost of comparable EVs in Illinois
Vehicle	Per 100 mi	Full charge	Per year
Tesla Model Y	27.5 kWh	$17.89	$656
Tesla Model 3	26.4 kWh	$18.17	$630
Hyundai Ioniq 6	28 kWh	$17.60	$668
Subaru Solterra	28 kWh	$16.04	$668
Toyota bZ	28 kWh	$16.04	$668
BMW iX	28.6 kWh	$24.69	$683

The same car in nearby-priced states

Charging a Tesla Model S in states with similar electricity prices
State	¢/kWh	Full charge	Per year
Ohio	19.19	$21.32	$624
Delaware	19.29	$21.43	$627
Wisconsin	19.56	$21.73	$636
Pennsylvania	21.73	$24.14	$707
Maryland	21.84	$24.27	$710
Michigan	22.99	$25.54	$748

Frequently asked questions

How much does it cost to charge a Tesla Model S in Illinois?

$22.10 for a full charge from empty. The car needs 111.1 kWh at the wall and Illinois residential electricity averages 19.89¢ per kWh.

How much does a Tesla Model S cost per mile in Illinois?

About $0.05 a mile, or $5.39 per 100 miles. Over 12,000 miles a year that is roughly $647 of electricity.

Is charging a Tesla Model S cheaper than petrol in Illinois?

Yes — 2.5 times cheaper per mile. Electricity costs $5.39 per 100 miles here against $13.62 for a 30 mpg petrol car at $4.09 a gallon, a saving of about $987 a year.

How long does a full charge last?

The EPA rates the Tesla Model S at 410 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 27.1 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.