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Distance from McNamara , Montana to Shawnee , Washington
Route Information
The driving distance from McNamara, Montana to Shawnee, Washington is 280 mi (450.7 km)
The straight-line (air) distance is 170.3 mi (274.1 km)
The estimated flight time is 0 hr 21 min (assuming average flight speed of 500 mph)
The estimated travel time by road is 4 hours 30 minutes
Traveling highway, long-distance in a west direction. Average speeds around 64 mph.
Location Details
Origin:
Destination:
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Journey Summary
Traveling from McNamara, Montana to Shawnee, Washington covers 280 mi (450.7 km) in a west direction. This highway, long-distance route typically takes 4 hours 30 minutes under normal conditions.
The route features scenic views, toll sections. with average speeds around 64 mph (103 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.