Porsche · gas
Porsche 911 fuel economy & road trip cost
The Porsche 911 (2015–2025) is rated at 20 combined MPG with a 17.6 gallon tank, giving roughly 282 miles between stops once you keep a sensible reserve.
Combined MPG
20
Tank
17.6 gal
Usable range
282 mi
Cost per mile
$0.173
Gas cost per 100 miles in a Porsche 911
| Pump price ($/gal) | 100 miles | 300 miles | Full tank |
|---|---|---|---|
| $3.00 | $15.00 | $45.00 | $52.80 |
| $3.50 | $17.50 | $52.50 | $61.60 |
| $4.00 | $20.00 | $60.00 | $70.40 |
| $4.50 | $22.50 | $67.50 | $79.20 |
| $5.00 | $25.00 | $75.00 | $88.00 |
Highway-heavy trips usually beat the combined rating; city traffic and roof loads reduce it.
Popular trips in a Porsche 911
- Las Vegas to Phoenix · ~$52
- Las Vegas to Los Angeles · ~$47
- Los Angeles to San Francisco · ~$71
- Los Angeles to San Diego · ~$23
- Los Angeles to Las Vegas · ~$47
- San Francisco to Los Angeles · ~$71
- New York to Boston · ~$39
- New York to Washington · ~$41
- New York to Philadelphia · ~$16
- Chicago to Indianapolis · ~$33
- Chicago to Detroit · ~$48
- Chicago to St. Louis · ~$53
Other Porsche models
Fuel figures on this page are modelled estimates built from published EPA combined MPG ratings and curated regional pump-price baselines. They are not live station quotes — always confirm the price at the pump before you travel.