Fuel cost calculator · About 420 miles
Gas cost from Salt Lake City to Las Vegas
The drive from Salt Lake City, UT to Las Vegas, NV is about 420 miles, so a round trip costs about $125.04 in gas at this week's average of $4.47 a gallon. Change the car, fuel or distance below for your own figure.
What the trip costs by vehicle
| Vehicle | One way | Round trip |
|---|---|---|
| Compact car (33 mpg) | $56.83 | $113.67 |
| Midsize sedan (30 mpg) | $62.52 | $125.04 |
| Hybrid (50 mpg) | $37.51 | $75.02 |
| Minivan (22 mpg) | $85.25 | $170.50 |
| SUV (24 mpg) | $78.15 | $156.29 |
| Pickup truck (19 mpg) | $98.71 | $197.42 |
Regular gas at $4.466 a gallon, the average of this week's Utah and Nevada prices, from the EIA’s weekly survey. Fuel only: tolls and parking are not included.
Fuel economy figures are round examples for each kind of vehicle, not official ratings. Your own car's EPA rating is on fueleconomy.gov.
Distance: fastest route between city centres, rounded to the nearest 5 miles, calculated with OSRM on OpenStreetMap road data (© OpenStreetMap contributors), measured November 2026.
420 miles in Utah
$62.58
14 gallons at $4.47 a gallon
$4.44 more than the same trip at the national average.
- Per mile
- 14.9¢
- A full tank
- $67.05
- about 450 miles
- A year of driving
- $1,788
- $149 a month
Where to fill up
Regular is about $0.37 a gallon cheaper in Utah than in Nevada this week, $5.58 on a 15-gallon fill. Fill the tank on the Utah side of the trip. See how Utah’s gas tax compares.
Salt Lake City to Las Vegas by car
- How much does gas cost from Salt Lake City to Las Vegas?
- About $62.52 one way, or $125.04 for the round trip, in a car that gets 30 mpg. That assumes 420 miles and this week's average regular price of $4.47 a gallon. An SUV at 24 mpg spends about $78.15 one way; a hybrid at 50 mpg about $37.51.
- How far is Salt Lake City from Las Vegas by car?
- About 420 miles on the fastest route between the two city centres, measured on OpenStreetMap road data. Your own start and end points may make it a little longer or shorter; type your distance into the calculator for an exact figure.
- How many gallons of gas does the drive take?
- About 14.0 gallons one way at 30 mpg. That fits in a typical 15-gallon tank, so most cars can make it without stopping for fuel.
- Is gas cheaper in Utah or Nevada?
- This week regular is about $0.37 a gallon cheaper in Utah, which is $5.58 on a 15-gallon fill. Filling up before you leave Utah saves the most.