The Real Cost
Week of September 21, 2026 · Chicago, IL
2026 Mazda CX-5
15.3 gal tank · 26 MPG
$57–$67
typical fill → full tank · 15.3 galAt $4.39/gal, this tank gets you about 398 miles.
Source: EIA · Updated September 21, 2026
12-week state trend · padd proxy
+$0.85 over 12 wk
Local context
Chicago runs at $4.39/gal this week — about 2.1% below the U.S. average of $4.48. At this price the 2026 Mazda CX-5's 26 MPG returns roughly 5.9 miles per dollar (38.5 gallons per 1,000 miles).
At a typical 12,000 miles a year — the U.S. driving average — a Chicago driver spends about $2,024 on gas in this car (use the calculator for your own mileage). For the same car, $2,771 in California (priciest reporting state at $6.00/gal) vs. $1,813 in Texas ($3.93/gal). $957 swing.
By the numbers
Fill cost
$57–$67
typical → full · 398 mi/tank
Per gallon
$4.39
EIA Midwest weekly
Monthly · 12k mi/yr
$168.69
38.5 gal
Annual · 12k mi/yr
$2024
462 gal
The math
Why it costs what it costs.
- Fill cost = 15.3 gal × $4.39/gal = $67.11
- Miles per tank = 15.3 × 26 = 398
- Annual @ 12,000 mi (typical) = 12,000 ÷ 26 × $4.39 = $2024
Want to customize miles per year or override the pump price you saw? Use the full calculator.