The Real Cost
Week of May 18, 2026 · Seattle, WA
2026 Honda Odyssey
20 gal tank · 22 MPG
$111.82 to fill the tank
At $5.59/gal, this tank gets you about 440 miles.
Source: EIA · Updated May 18, 2026
By the numbers
- Fill cost
- $111.82
- 440 miles per tank
- $/gallon
- $5.59
- EIA WA state weekly
- Monthly (12k mi/yr)
- $254.14
- 45.5 gallons
- Annual (12k mi/yr)
- $3050
- 545 gallons
The math
Why it costs what it costs.
- Fill cost = 20 gal × $5.59/gal = $111.82
- Miles per tank = 20 × 22 = 440
- Annual (12,000 mi) = 12,000 ÷ 22 × $5.59 = $3050
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