The Real Cost
Week of November 2, 2026 · Chicago, IL
2026 Mazda 3 4-Door
2.5L I4 FWD · 13.2 gal tank · 30 MPG · manufacturer spec
$53–$62
typical fill → full tank · 13.2 galAt $4.71/gal, this tank gets you about 396 miles.
Source: EIA · Updated November 2, 2026
12-week state trend · padd proxy
+$0.29 over 12 wk
Local context
Chicago runs at $4.71/gal this week — about 13.3% above the U.S. average of $4.15. At this price the 2026 Mazda 3 4-Door's 30 MPG returns roughly 6.4 miles per dollar (33.3 gallons per 1,000 miles).
At a typical 12,000 miles a year — the U.S. driving average — a Chicago driver spends about $1,882 on gas in this car (use the calculator for your own mileage). For the same car, $2,299 in California (priciest reporting state at $5.75/gal) vs. $1,431 in Texas ($3.58/gal). $868 swing.
By the numbers
Fill cost
$53–$62
typical → full · 396 mi/tank
Per gallon
$4.71
EIA weekly — Chicago
Monthly · 12k mi/yr
$156.87
33.3 gal
Annual · 12k mi/yr
$1882
400 gal
The math
Why it costs what it costs.
- Fill cost = 13.2 gal × $4.71/gal = $62.12
- Miles per tank = 13.2 × 30 = 396
- Annual @ 12,000 mi (typical) = 12,000 ÷ 30 × $4.71 = $1882
Want to customize miles per year or override the pump price you saw? Use the full calculator.