USA › Road trip gas calculator › Portland to San Francisco
Portland to San Francisco: gas cost
About 635 miles one way. Fuel cost at this week’s average regular price in West Coast excluding California: $4.771 per gallon (EIA, week of Nov 2, 2026).
Fuel cost by vehicle
| Vehicle | MPG | Gallons | One way | Round trip |
|---|---|---|---|---|
| Compact car | 35 | 18.1 | $86.56 | $173.12 |
| Midsize sedan | 30 | 21.2 | $100.99 | $201.97 |
| SUV / crossover | 24 | 26.5 | $126.23 | $252.47 |
| Pickup truck | 18 | 35.3 | $168.31 | $336.62 |
💡 Oregon is usually cheaper than California, so fill up before you cross the state line.
Calculate with your own numbers
Popular road trips
FAQ
How much does it cost to drive from Portland to San Francisco?
At about 635 miles and this week’s average of $4.771 per gallon (West Coast excluding California), a car averaging 30 MPG uses about 21.2 gallons – roughly $100.99 one way or $201.97 round trip.
How many gallons of gas from Portland to San Francisco?
About 18.1 gallons for a 35 MPG car, 26.5 for a 24 MPG SUV and 35.3 for an 18 MPG pickup.
Gas prices by state this week → · Gas price history → · More calculators →
Distances are approximate driving distances. Gas prices: U.S. Energy Information Administration weekly averages for regular gasoline; actual prices along the route vary.