The Real Cost
Week of November 2, 2026 · Philadelphia, PA
2027 Toyota Prius
2.0L I4 Hybrid FWD · 10.6 gal tank · 55 MPG · manufacturer spec
$38–$45
typical fill → full tank · 10.6 galAt $4.23/gal, this tank gets you about 583 miles.
Source: EIA · Updated November 2, 2026
12-week state trend · padd proxy
+$0.17 over 12 wk
Local context
Philadelphia runs at $4.23/gal this week — about 1.9% above the U.S. average of $4.15. At this price the 2027 Toyota Prius's 55 MPG returns roughly 13.0 miles per dollar (18.2 gallons per 1,000 miles).
At a typical 12,000 miles a year — the U.S. driving average — a Philadelphia driver spends about $923 on gas in this car (use the calculator for your own mileage). For the same car, $1,254 in California (priciest reporting state at $5.75/gal) vs. $781 in Texas ($3.58/gal). $473 swing.
By the numbers
Fill cost
$38–$45
typical → full · 583 mi/tank
Per gallon
$4.23
EIA Central Atlantic weekly
Monthly · 12k mi/yr
$76.95
18.2 gal
Annual · 12k mi/yr
$923
218 gal
The math
Why it costs what it costs.
- Fill cost = 10.6 gal × $4.23/gal = $44.86
- Miles per tank = 10.6 × 55 = 583
- Annual @ 12,000 mi (typical) = 12,000 ÷ 55 × $4.23 = $923
Want to customize miles per year or override the pump price you saw? Use the full calculator.