USA › Road trip gas calculator › Phoenix to Las Vegas
Phoenix to Las Vegas: gas cost
About 300 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 | 8.6 | $40.89 | $81.79 |
| Midsize sedan | 30 | 10.0 | $47.71 | $95.42 |
| SUV / crossover | 24 | 12.5 | $59.64 | $119.28 |
| Pickup truck | 18 | 16.7 | $79.52 | $159.03 |
💡 Kingman, Arizona is a popular fuel stop with competitive prices.
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FAQ
How much does it cost to drive from Phoenix to Las Vegas?
At about 300 miles and this week’s average of $4.771 per gallon (West Coast excluding California), a car averaging 30 MPG uses about 10.0 gallons – roughly $47.71 one way or $95.42 round trip.
How many gallons of gas from Phoenix to Las Vegas?
About 8.6 gallons for a 35 MPG car, 12.5 for a 24 MPG SUV and 16.7 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.