The Real Cost
Week of September 21, 2026 · Denver, CO
2027 Volkswagen Jetta
13.2 gal tank · 34 MPG
$47–$56
typical fill → full tank · 13.2 galAt $4.21/gal, this tank gets you about 449 miles.
Source: EIA · Updated September 21, 2026
12-week state trend
+$0.74 over 12 wk
Local context
Denver runs at $4.21/gal this week — about 6.0% below the U.S. average of $4.48. At this price the 2027 Volkswagen Jetta's 34 MPG returns roughly 8.1 miles per dollar (29.4 gallons per 1,000 miles).
At a typical 12,000 miles a year — the U.S. driving average — a Denver driver spends about $1,486 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
$47–$56
typical → full · 449 mi/tank
Per gallon
$4.21
EIA weekly — Denver
Monthly · 12k mi/yr
$123.85
29.4 gal
Annual · 12k mi/yr
$1486
353 gal
The math
Why it costs what it costs.
- Fill cost = 13.2 gal × $4.21/gal = $55.59
- Miles per tank = 13.2 × 34 = 449
- Annual @ 12,000 mi (typical) = 12,000 ÷ 34 × $4.21 = $1486
Want to customize miles per year or override the pump price you saw? Use the full calculator.