California Gas Prices Today
Weekly average gas prices for California (CA) — regular, mid-grade, premium, and diesel — compared to the US national average.
California vs. US National Average
| Grade | California | US Average | Difference |
|---|---|---|---|
| Regular | $4.892 | $3.442 | +$1.450 |
| Mid-Grade | $5.212 | $3.991 | +$1.221 |
| Premium | $5.548 | $4.482 | +$1.066 |
| Diesel | $5.102 | $3.801 | +$1.301 |
Prices are weekly averages. Actual pump prices vary by county, brand, and station type.
Why Are California Gas Prices Higher?
California Reformulated Gasoline (CARB RFG)
California requires a special blend of gasoline with stricter emissions standards than EPA requirements. This CARB-compliant fuel costs more to produce.
State Taxes & Fees
California has some of the highest state fuel taxes in the US, including the CA excise tax, sales tax, and underground storage tank fees — adding over $0.80/gallon on top of the federal $0.184/gallon.
Cap-and-Trade Carbon Costs
California's cap-and-trade carbon pricing program adds an additional cost per gallon that refiners pass to consumers.
Limited Pipeline Networks
California is geographically isolated from major US fuel pipelines, limiting the ability to quickly import cheaper fuel from other states.
All information on WhatsUpPrice is provided for educational and informational purposes only and does not constitute financial, investment, or tax advice.