The Real Cost
Week of September 21, 2026 · Boston, MA
2027 Volkswagen Jetta
13.2 gal tank · 34 MPG
$49–$57
typical fill → full tank · 13.2 galAt $4.35/gal, this tank gets you about 449 miles.
Source: EIA · Updated September 21, 2026
12-week state trend
+$0.56 over 12 wk
Local context
Boston runs at $4.35/gal this week — about 2.9% below the U.S. average of $4.48. At this price the 2027 Volkswagen Jetta's 34 MPG returns roughly 7.8 miles per dollar (29.4 gallons per 1,000 miles).
At a typical 12,000 miles a year — the U.S. driving average — a Boston driver spends about $1,535 on gas in this car (use the calculator for your own mileage). For the same car, $2,119 in California (priciest reporting state at $6.00/gal) vs. $1,387 in Texas ($3.93/gal). $732 swing.
By the numbers
Fill cost
$49–$57
typical → full · 449 mi/tank
Per gallon
$4.35
EIA MA state weekly
Monthly · 12k mi/yr
$127.91
29.4 gal
Annual · 12k mi/yr
$1535
353 gal
The math
Why it costs what it costs.
- Fill cost = 13.2 gal × $4.35/gal = $57.41
- Miles per tank = 13.2 × 34 = 449
- Annual @ 12,000 mi (typical) = 12,000 ÷ 34 × $4.35 = $1535
Want to customize miles per year or override the pump price you saw? Use the full calculator.