The Real Cost
Week of May 18, 2026 · Denver, CO
2026 Hyundai Elantra
15 gal tank · 31 MPG
$69.27 to fill the tank
At $4.62/gal, this tank gets you about 465 miles.
Source: EIA · Updated May 18, 2026
By the numbers
- Fill cost
- $69.27
- 465 miles per tank
- $/gallon
- $4.62
- EIA CO state weekly
- Monthly (12k mi/yr)
- $148.97
- 32.3 gallons
- Annual (12k mi/yr)
- $1788
- 387 gallons
The math
Why it costs what it costs.
- Fill cost = 15 gal × $4.62/gal = $69.27
- Miles per tank = 15 × 31 = 465
- Annual (12,000 mi) = 12,000 ÷ 31 × $4.62 = $1788
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