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Distance from St Charles to South Willard

Driving Distance
98.4 mi 158.4 km
Flying Distance
61.7 mi 99.3 km

Route Information

The driving distance from St Charles, Idaho to South Willard, Utah is 98.4 mi (158.4 km)

The straight-line (air) distance is 61.7 mi (99.3 km)

The estimated flight time is 0 hr 7 min

The estimated travel time by road is 1 hour 57 minutes

Traveling mixed highways and local roads, substantial in a southwest direction. Average speeds around 50 mph.

Location Details

Origin:

St Charles
Place St Charles
State/Province Idaho
Country US
Latitude 42.113819
Longitude -111.388818
GPS 42.113819° N, 111.388818° W
Local Time 9:26 AM
Timezone America/Boise

Destination:

South Willard
Place South Willard
State/Province Utah
Country US
Latitude 41.362082
Longitude -112.035481
GPS 41.362082° N, 112.035481° W
Local Time 9:26 AM
Timezone America/Denver

Journey Summary

Traveling from St Charles, Idaho to South Willard, Utah covers 98.4 mi (158.4 km) in a southwest direction. This mixed highways and local roads, substantial route typically takes 1 hour 57 minutes under normal conditions.

Drivers have 2 route options between these locations (85.0-98.4 miles / 137-158 km). The primary route shown here saves 14 minutes compared to alternatives.

The route features scenic views along the way. with average speeds around 50 mph (80 km/h).

Available Routes

US-89 S
98.4 mi 1 hour 57 minutes
Shortest
US-89 S and US-89 S/S Hwy 89
85 mi 1 hour 43 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.