The Real Cost
Week of September 21, 2026 · Phoenix, AZ
2022 Volvo XC90
18.8 gal tank · 23 MPG
$89–$105
typical fill → full tank · 18.8 galAt $5.60/gal, this tank gets you about 432 miles.
Source: EIA · Updated September 21, 2026
12-week state trend · padd proxy
+$0.77 over 12 wk
Local context
Phoenix runs at $5.60/gal this week — about 25.1% above the U.S. average of $4.48. At this price the 2022 Volvo XC90's 23 MPG returns roughly 4.1 miles per dollar (43.5 gallons per 1,000 miles).
At a typical 12,000 miles a year — the U.S. driving average — a Phoenix driver spends about $2,922 on gas in this car (use the calculator for your own mileage). For the same car, $3,132 in California (priciest reporting state at $6.00/gal) vs. $2,050 in Texas ($3.93/gal). $1,082 swing.
By the numbers
Fill cost
$89–$105
typical → full · 432 mi/tank
Per gallon
$5.60
EIA West Coast weekly
Monthly · 12k mi/yr
$243.48
43.5 gal
Annual · 12k mi/yr
$2922
522 gal
The math
Why it costs what it costs.
- Fill cost = 18.8 gal × $5.60/gal = $105.28
- Miles per tank = 18.8 × 23 = 432
- Annual @ 12,000 mi (typical) = 12,000 ÷ 23 × $5.60 = $2922
Want to customize miles per year or override the pump price you saw? Use the full calculator.