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Distance from Boulder to Helena West Side
Route Information
The driving distance from Boulder, Montana to Helena West Side, Montana is 34.3 mi (55.3 km)
The straight-line (air) distance is 25.0 mi (40.2 km)
The estimated flight time is 0 hr 3 min
The estimated travel time by road is 37 minutes
Traveling highway, moderate in a north direction. Average speeds around 58 mph.
Location Details
Origin:
Destination:
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Journey Summary
Traveling from Boulder, Montana to Helena West Side, Montana covers 34.3 mi (55.3 km) in a north direction. This highway, moderate route typically takes 37 minutes under normal conditions.
The route features scenic views along the way. with average speeds around 58 mph (93 km/h).
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.