PADD 5 (West Coast) Gas Prices

Current average fuel prices for PADD 5 (West Coast), sourced from the U.S. Energy Information Administration's weekly retail survey, plus a calculator prefilled with the local price.

Regular$4.983
Premium$5.584
Diesel$5.877

Weekly price trend, regular gasoline

$4.75$5.00$5.25$5.50Jun 1Jun 15Jun 29Jul 13Jul 20
View regular gasoline trend as a table
Week ofPrice per gallon
Jun 1$5.500
Jun 8$5.358
Jun 15$5.229
Jun 22$5.057
Jun 29$4.919
Jul 6$4.831
Jul 13$4.832
Jul 20$4.983

What shapes the price in PADD 5 (West Coast)

PADD 5 includes California, Washington, Oregon, Nevada, Arizona, Alaska, and Hawaii. Lacking pipeline connections to refiners east of the Rockies, PADD 5 is an isolated 'fuel island' that depends on local West Coast refineries and maritime imports.

U.S. retail gasoline prices follow a reliable seasonal cycle. Prices typically rise between February and May as refineries conduct scheduled seasonal maintenance (turnarounds) and switch production from winter-grade fuel to more expensive, low-RVP (Reid Vapor Pressure) summer blends designed to reduce ground-level smog in hot weather. Increased summer vacation driving further boosts demand. Conversely, prices typically soften following Labor Day as refiners transition back to lower-cost winter blends containing inexpensive butane, alongside lower cold-weather driving demand.

Calculate your fuel cost in PADD 5 (West Coast)

Calculator Parameters

Distance unit
Fuel economy unit
$per US gallon

This is an estimated default price. Automatic price detection only applies to visitors in the United States. Everyone else can select their own currency and enter a local price below for an accurate result.

Currency

Enter total travelers to split gas cost fairly.

Trip type
Timeframe

Your Calculation Results

High Consumption (> 8.5 L/100km)
Total Fuel Needed (for this trip)
8.88 US gallons
(33.6 liters total)
Total Fuel Cost (for this trip)
$44.21
Cost breakdown per distance unit
$0.711 per mile • $0.442 per km
Total Distance (for this trip)
100.0 kilometers

Fuel economy in every unit

L/100km
33.6
MPG US
7.0
MPG UK
8.4
km/L
3.0

The fuel calculator above is prefilled with PADD 5 (West Coast)'s current regular gasoline price. If your vehicle requires high-octane premium or runs on diesel, replace the default price with the corresponding regional price above to see your exact cost per mile and total trip fuel expense.

Calculate trip fuel costs from PADD 5 (West Coast)

Planning a driving route? See exact distances, vehicle consumption comparisons, and trip gas costs for routes connecting through PADD 5 (West Coast):

Driving an EV instead?

Drivers operating an electric vehicle (EV) are not directly impacted by gasoline or diesel pump prices. Instead, EV charging costs depend on local residential and public electricity rates measured in cents per kilowatt-hour (kWh). To evaluate how electricity costs compare to gasoline in this region, use our EV versus Gas Comparator.

Open the EV versus gas comparator

Last updated July 24, 2026 at 8:39 AM UTC. Prices are refreshed from U.S. EIA weekly retail survey data.

Frequently asked questions

No interstate petroleum pipelines cross the Rocky Mountains into the West Coast. PADD 5 must refine its own fuel locally or import it via ocean tankers across the Pacific, making it vulnerable to price spikes during refinery outages.

Premium gasoline has a higher octane rating (91 to 93 AKI), which prevents premature engine knock in high-compression and turbocharged engines. Producing high octane requires additional refinery processing steps such as catalytic alkylation and reforming, and retailers price it with wider retail margins, resulting in a consistent 50 to 70 cent premium over regular.

Price figures for PADD 5 (West Coast) are derived from the U.S. Energy Information Administration's (EIA) official retail survey, updated on a weekly schedule. Individual street-corner stations adjust their posted board prices daily based on wholesale rack spot price shifts.