Calculating Your Route
Just a moment while we calculate your route...
Distance from Smithfield to Castle Rock
Route Information
The driving distance from Smithfield, Utah to Castle Rock, Utah is 155.8 mi (250.7 km)
The straight-line (air) distance is 59.9 mi (96.3 km)
The estimated flight time is 0 hr 7 min
The estimated travel time by road is 2 hours 36 minutes
Traveling highway, substantial in a southeast direction. Average speeds around 58 mph.
Location Details
Origin:
Destination:
Journey Summary
Traveling from Smithfield, Utah to Castle Rock, Utah covers 155.8 mi (250.7 km) in a southeast direction. This highway, substantial route typically takes 2 hours 36 minutes under normal conditions.
Drivers have 3 route options between these locations (113.9-155.8 miles / 183-251 km). The primary route shown here saves 38 minutes compared to alternatives.
The route features scenic views, toll sections. with average speeds around 58 mph (93 km/h).
Available Routes
How is the distance calculated?
Driving distances are based on actual road data. We use advanced routing algorithms that consider traffic, tolls, highways, and local streets. For air distances (as the crow flies), we use the Vincenty formula. It's a precise method that accounts for the Earth's shape and provides accuracy up to 0.5 mm.
When multiple route options exist, we display both the shortest and fastest paths. Travel times are estimated based on typical speeds for each road type, though actual times may vary with traffic and weather conditions. All distances are shown in both miles and kilometers for convenience.