$6.27 a gallon in San Francisco
Average price of regular gasoline for the week of September 28, 2026, including taxes (EIA).
- Change from last week: +$0.196 (was $6.07).
- Change over the last five weeks: +$0.795 (from $5.47).
- $1.80 above the U.S. average of $4.47.
- 9 of the 10 tracked cities had cheaper gas this week.
- Next EIA update: 10/6/2026.
Recent weeks
| Week of | Regular, per gallon |
|---|---|
| September 28, 2026 | $6.267 |
| September 21, 2026 | $6.071 |
| September 14, 2026 | $5.930 |
| September 7, 2026 | $5.752 |
| August 31, 2026 | $5.552 |
| August 24, 2026 | $5.472 |
Cost to fill up at this price
| Tank | Cost |
|---|---|
| 10 gallons | $62.67 |
| 12 gallons | $75.20 |
| 15 gallons | $94.01 |
| 20 gallons | $125.34 |
What driving costs at this price
| Fuel economy | Per 100 miles | Per 1,000 miles |
|---|---|---|
| 20 mpg | $31.34 | $313.35 |
| 25 mpg | $25.07 | $250.68 |
| 30 mpg | $20.89 | $208.90 |
| 40 mpg | $15.67 | $156.68 |
Cost = miles ÷ miles per gallon × price per gallon. Your car's real fuel economy depends on speed, traffic, weather and maintenance.
Sources and method
- Retail Prices for Regular Gasoline (weekly, by area), U.S. Energy Information Administration (EIA)
- U.S. Gasoline and Diesel Retail Prices (weekly), U.S. Energy Information Administration (EIA)
Average retail price of regular gasoline, all formulations, in dollars per gallon including taxes, for the week shown. Prices at individual stations vary.
Data last checked: October 4, 2026.