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Distance from McAdam to St Maries

Driving Distance
154.1 mi 248 km
Flying Distance
97.7 mi 157.2 km

Route Information

The driving distance from McAdam, Washington to St Maries, Idaho is 154.1 mi (248 km)

The straight-line (air) distance is 97.7 mi (157.2 km)

The estimated flight time is 0 hr 12 min

The estimated travel time by road is 2 hours 48 minutes

Traveling mixed highways and local roads, substantial in a east direction. Average speeds around 51 mph.

Location Details

Origin:


No image available
Place McAdam
State/Province Washington
Country US
Latitude 46.69681
Longitude -118.422202
GPS 46.69681° N, 118.422202° W
Local Time 8:36 PM
Timezone America/Los_Angeles

Destination:

St Maries
Place St Maries
State/Province Idaho
Country US
Latitude 47.314354
Longitude -116.562668
GPS 47.314354° N, 116.562668° W
Local Time 8:36 PM
Timezone America/Los_Angeles

Journey Summary

Traveling from McAdam, Washington to St Maries, Idaho covers 154.1 mi (248 km) in a east direction. This mixed highways and local roads, substantial route typically takes 2 hours 48 minutes under normal conditions.

Drivers have 3 route options between these locations (121.0-177.8 miles / 195-286 km). The primary route shown here saves 41 minutes compared to alternatives.

The route features scenic views along the way. with average speeds around 51 mph (82 km/h).

Available Routes

I-90 E
154.1 mi 2 hours 48 minutes
Shortest
I-90 E and State Hwy 3 S
177.8 mi 2 hours 58 minutes
WA-26
121 mi 2 hours 18 minutes
Fastest

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.