The Real Cost
Week of September 21, 2026 · Seattle, WA
2027 Honda Odyssey
19.5 gal tank · 22 MPG · manufacturer spec
$94–$111
typical fill → full tank · 19.5 galAt $5.69/gal, this tank gets you about 429 miles.
Source: EIA · Updated September 21, 2026
12-week state trend
+$0.62 over 12 wk
Local context
Seattle runs at $5.69/gal this week — about 27.1% above the U.S. average of $4.48. At this price the 2027 Honda Odyssey's 22 MPG returns roughly 3.9 miles per dollar (45.5 gallons per 1,000 miles).
At a typical 12,000 miles a year — the U.S. driving average — a Seattle driver spends about $3,105 on gas in this car (use the calculator for your own mileage). For the same car, $3,274 in California (priciest reporting state at $6.00/gal) vs. $2,143 in Texas ($3.93/gal). $1,131 swing.
By the numbers
Fill cost
$94–$111
typical → full · 429 mi/tank
Per gallon
$5.69
EIA weekly — Seattle
Monthly · 12k mi/yr
$258.73
45.5 gal
Annual · 12k mi/yr
$3105
545 gal
The math
Why it costs what it costs.
- Fill cost = 19.5 gal × $5.69/gal = $110.99
- Miles per tank = 19.5 × 22 = 429
- Annual @ 12,000 mi (typical) = 12,000 ÷ 22 × $5.69 = $3105
Want to customize miles per year or override the pump price you saw? Use the full calculator.