Boulder to Rock Springs: Road Trip Guide & Distance

How far is Boulder from Rock Springs?

The distance from Boulder to Rock Springs is 232.6 miles (374.3 km) as the crow flies. Rock Springs is located WNW of Boulder. By car, the driving distance is approximately 290.7 miles, taking about 5h 51min. A direct flight would take roughly 58min. Both are located in United States — Boulder in Colorado and Rock Springs in Wyoming.

For a drive of this length, it's recommended to plan at least one quick rest stop to stretch your legs and grab a coffee. Since you'll be heading mostly West, pack a good pair of sunglasses if you plan to drive during the late afternoon to avoid the harsh sun glare.

Coordinates come from public place data for Boulder and Rock Springs. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.