Distance from Salt Lake City, UT to Boulder, CO
Driving directions and distance from Salt Lake City, UT to Boulder, CO. See miles, drive time, and estimated gas cost for the trip.
Trip cost calculator
Trip details
| From | Salt Lake City, Utah (population: 191,180) |
|---|---|
| To | Boulder, Colorado (population: 103,166) |
| Driving distance | 440 miles |
| Straight-line (as the crow flies) | 352 miles |
| Estimated drive time | 7 hr 20 min (avg 60 mph) |
| Gas needed at 25 MPG | ~ 17.6 gallons |
| Gas needed at 30 MPG | ~ 14.7 gallons |
| Salt Lake City coordinates | 40.7608°, -111.8910° |
| Boulder coordinates | 40.0150°, -105.2705° |
Frequently asked questions
How many miles is it from Salt Lake City, UT to Boulder, CO?
The driving distance from Salt Lake City, UT to Boulder, CO is approximately 440 miles by road. As the crow flies (straight line), the two cities are 352 miles apart.
How long is the drive from Salt Lake City, UT to Boulder, CO?
The drive takes about 7 hr 20 min at an average speed of 60 mph. Actual time will depend on traffic, weather, your driving speed, and how often you stop. Plan for additional time on routes with construction, urban congestion, or scenic detours.
How much will gas cost?
For a vehicle averaging 25 MPG, expect to use about 17.6 gallons — roughly $60 at $3.40/gallon. A more efficient vehicle (30 MPG) would use about 14.7 gallons, or $50. Use the calculator above to plug in your own MPG and local gas price.
What's the best route?
The figures above show the most direct driving route. For real-time turn-by-turn directions, current traffic conditions, and to compare alternative routes (interstate vs. scenic), use Google Maps or your preferred GPS app. Toll roads may shave time but add cost — check ahead for E-ZPass / SunPass / FasTrak coverage.