Charging an EV at home in Illinois costs about $51.92 a month for 1,000 miles in a Tesla Model Y Long Range AWD — 5.2¢ a mile, versus 15.2¢ for a 27.2 mpg car on $4.14 gas.
At 19.23¢/kWh — Illinois average, Jan–Aug 2026 (EIA). That is 6% above the U.S. average of 18.19¢.
Driving 1,000 miles a month on electricity saves about $1,206 a year in Illinois versus a 27.2 mpg gas car. Maintenance and insurance differences are not included.
| Vehicle | kWh/100 mi | Per month |
|---|---|---|
| Tesla Model Y Standard RWD (18 in) | 24 | $46.15 |
| Tesla Model 3 Standard RWD | 24 | $46.15 |
| Tesla Model 3 Premium AWD | 26 | $50.00 |
| Tesla Model Y Long Range AWD | 27 | $51.92 |
| Tesla Model S | 27 | $51.92 |
| Nissan LEAF 75 kWh (18 in) | 28 | $53.84 |
| Hyundai Ioniq 5 RWD | 30 | $57.69 |
| Chevrolet Equinox EV FWD | 31 | $59.61 |
| Ford Mustang Mach-E RWD Extended | 31 | $59.61 |
| Tesla Model X | 32 | $61.54 |
| Honda Prologue FWD | 33 | $63.46 |
| Kia EV9 Long Range RWD | 38 | $73.07 |
| Tesla Cybertruck AWD | 43 | $82.69 |
| Rivian R1S Dual Large (20 in) | 43 | $82.69 |
| Ford F-150 Lightning ER (last model year) | 48 | $92.30 |
| Vehicle | kWh/100 mi | Per month | Per mile |
|---|---|---|---|
| Tesla Model Y Standard RWD | 24 | $46.15 | 4.6¢ |
| Tesla Model 3 Standard RWD | 24 | $46.15 | 4.6¢ |
| Tesla Model 3 Premium AWD | 26 | $50.00 | 5¢ |
| Tesla Model Y Long Range AWD | 27 | $51.92 | 5.2¢ |
| Tesla Model S | 27 | $51.92 | 5.2¢ |
| Nissan LEAF 75 kWh | 28 | $53.84 | 5.4¢ |
| Hyundai Ioniq 5 RWD | 30 | $57.69 | 5.8¢ |
| Chevrolet Equinox EV FWD | 31 | $59.61 | 6¢ |
| Ford Mustang Mach-E RWD Extended | 31 | $59.61 | 6¢ |
| Tesla Model X | 32 | $61.54 | 6.2¢ |
| Honda Prologue FWD | 33 | $63.46 | 6.3¢ |
| Kia EV9 Long Range RWD | 38 | $73.07 | 7.3¢ |
| Tesla Cybertruck AWD | 43 | $82.69 | 8.3¢ |
| Rivian R1S Dual Large | 43 | $82.69 | 8.3¢ |
| Ford F-150 Lightning ER | 48 | $92.30 | 9.2¢ |
1,000 mi × 27 kWh/100 mi = 270 kWh; × 19.23¢ (Illinois average, Jan–Aug 2026, EIA) = $51.92. Gas: 1,000 ÷ 27.2 mpg × $4.14 = $152.39.
EIA's state average includes delivery and fixed customer charges spread over every kWh; your marginal cost for extra kWh may be a little lower. Enter your own rate in the calculator.
The full method, material data and tips are on the main ev charging cost calculator page.