US Road Fuel Cost Estimator
Seattle → San Diego
How much petrol or diesel does it cost to drive from Seattle to San Diego? Breakdown by vehicle type using today's United States fuel prices, updated from the datasource.
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Fuel Cost by Vehicle Type
Select your vehicle to see the detailed fuel breakdown for this route. Prices as of May 11, 2026.
Monthly Fleet Fuel Cost
Running this route regularly? Estimated one-way fuel cost per month, by trip frequency. Figures use primary fuel for each vehicle type (toll excluded).
| Vehicle | 1×/month | 5×/month | 10×/month | 22×/month |
|---|---|---|---|---|
Motorcycle Regular | USD 231 | USD 1,153 | USD 2,306 | USD 5,072 |
Car / SUV Regular | USD 769 | USD 3,843 | USD 7,685 | USD 16,908 |
Van / MPV Diesel | USD 1,287 | USD 6,435 | USD 12,869 | USD 28,313 |
Lorry Diesel | USD 2,317 | USD 11,583 | USD 23,165 | USD 50,963 |
Add USD 0.00 toll per one-way trip to get total trip cost per journey.
Full Fuel Cost Comparison
All vehicle types × all fuel types for this route.
| Vehicle | km/L | Regular | Midgrade | Premium | Diesel | Fuel + Toll |
|---|---|---|---|---|---|---|
| Motorcycle | 40 | USD 230.56 | USD 260.24 | — | — | USD 230.56 |
| Car / SUV | 12 | USD 768.54 | USD 867.47 | — | — | USD 768.54 |
| Van / MPV | 9 | USD 1024.72 | — | — | USD 1286.95 | USD 1286.95 |
| Lorry | 5 | — | — | — | USD 2316.50 | USD 2316.50 |
"Fuel + Toll" uses the primary fuel type for each vehicle. Toll is one-way estimate.
Today's Fuel Prices in United States
EIA weekly retail fuel prices used in all calculations above
Last updated: May 11, 2026. Prices are sourced from EIA weekly retail fuel prices.
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Common Questions: Seattle to San Diego
How far is Seattle to San Diego?
The highway distance from Seattle to San Diego is approximately 2054 km. The estimated driving time is 27h 23m under normal highway conditions.
How much petrol does a car use from Seattle to San Diego?
A typical car with 12 km/L mileage uses approximately 171.2 litres of petrol. At today's Regular price (USD 4.49/L), that costs USD 768.54.
How much does a lorry spend on diesel from Seattle to San Diego?
A lorry averaging 5 km/L needs about 410.8 litres of diesel for this route. At USD 5.64/L, the fuel cost is USD 2316.50 one-way.
What is the toll charge from Seattle to San Diego?
The estimated one-way toll on this highway route is approximately USD 0.00. US tolls are state- and corridor-specific. Route-level estimates are kept at zero and the pages point to FHWA toll-facility references.
How much does a motorcycle spend on fuel from Seattle to San Diego?
A motorcycle averaging 40 km/L uses about 51.4 litres. At today's Regular price, that's USD 230.56, making it the most fuel-efficient option for this route.
What is the total cost (fuel + toll) for a delivery van on this route?
A delivery van using diesel at 9 km/L needs 228.2 litres, costing USD 1286.95 in fuel. Add the USD 0.00 toll for a total one-way cost of approximately USD 1286.95.
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