California Gas Prices
Current average fuel prices for California, sourced from the U.S. Energy Information Administration's weekly retail survey, plus a calculator prefilled with the local price.
Weekly price trend, regular gasoline
View regular gasoline trend as a table
| Week of | Price per gallon |
|---|---|
| Jun 1 | $5.853 |
| Jun 8 | $5.696 |
| Jun 15 | $5.554 |
| Jun 22 | $5.387 |
| Jun 29 | $5.245 |
| Jul 6 | $5.175 |
| Jul 13 | $5.200 |
| Jul 20 | $5.354 |
What shapes the price in California
California consistently records the highest average fuel prices in the contiguous United States. Several structural factors drive this premium: the state levies the nation's highest state fuel excise tax (57.9 cents per gallon, plus local sales taxes), applies Cap-and-Trade climate program surcharges, and enforces the California Low Carbon Fuel Standard (LCFS). In addition, state air regulations mandate California Reformulated Gasoline (CARB gasoline), a specialized, low-emission blend produced by only a limited number of West Coast refineries. Because California is geographically separated from pipeline networks east of the Rocky Mountains, any unplanned local refinery outage causes rapid supply crunches that cannot easily be solved by pipeline imports from neighboring states.
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 California
Calculator Parameters
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.
Enter total travelers to split gas cost fairly.
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)
- $47.49
- Cost breakdown per distance unit
- $0.764 per mile • $0.475 per km
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 California'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 California
Planning a driving route? See exact distances, vehicle consumption comparisons, and trip gas costs for routes connecting through California:
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 comparatorLast updated July 24, 2026 at 8:39 AM UTC. Prices are refreshed from U.S. EIA weekly retail survey data.
Frequently asked questions
California fuel prices run $1.00 to $1.50 per gallon above the national baseline due to three main causes: the nation's highest state fuel tax rate (57.9 cents/gal), environmental compliance fees under the Cap-and-Trade and Low Carbon Fuel Standard programs, and the state-mandated CARB fuel blend required to reduce smog in major metro areas.
CARB gasoline is a specialized, cleaner-burning fuel formulation required by the California Air Resources Board. It produces significantly fewer smog-forming evaporative emissions than standard federal EPA gasoline, but requires extra refining processes and costs roughly 10 to 15 cents more per gallon to produce.
No petroleum pipelines cross the Rocky Mountains into California. Furthermore, refiners in the Gulf Coast do not routinely produce California's unique CARB blend. When a local refinery experiences an outage, replacement supply must arrive via ocean-going tanker ship, which takes weeks to arrange.
Both Los Angeles and the San Francisco Bay Area typically sit above California's statewide average due to higher station land costs, commercial property rents, local labor costs, and dense urban traffic. San Francisco often commands a slight premium over Los Angeles due to local distribution constraints.
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 California 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.