US Road Fuel Cost Estimator
Austin → San Antonio
How much petrol or diesel does it cost to drive from Austin to San Antonio? 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 16 | USD 80 | USD 159 | USD 351 |
Car / SUV Regular | USD 53 | USD 266 | USD 531 | USD 1,169 |
Van / MPV Diesel | USD 89 | USD 445 | USD 890 | USD 1,957 |
Lorry Diesel | USD 160 | USD 801 | USD 1,601 | USD 3,523 |
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 15.94 | USD 17.99 | — | — | USD 15.94 |
| Car / SUV | 12 | USD 53.13 | USD 59.97 | — | — | USD 53.13 |
| Van / MPV | 9 | USD 70.84 | — | — | USD 88.97 | USD 88.97 |
| Lorry | 5 | — | — | — | USD 160.15 | USD 160.15 |
"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: Austin to San Antonio
How far is Austin to San Antonio?
The highway distance from Austin to San Antonio is approximately 142 km. The estimated driving time is 1h 54m under normal highway conditions.
How much petrol does a car use from Austin to San Antonio?
A typical car with 12 km/L mileage uses approximately 11.8 litres of petrol. At today's Regular price (USD 4.49/L), that costs USD 53.13.
How much does a lorry spend on diesel from Austin to San Antonio?
A lorry averaging 5 km/L needs about 28.4 litres of diesel for this route. At USD 5.64/L, the fuel cost is USD 160.15 one-way.
What is the toll charge from Austin to San Antonio?
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 Austin to San Antonio?
A motorcycle averaging 40 km/L uses about 3.5 litres. At today's Regular price, that's USD 15.94, 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 15.8 litres, costing USD 88.97 in fuel. Add the USD 0.00 toll for a total one-way cost of approximately USD 88.97.
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