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Distance from Ajax to Fort Pierre

Driving Distance
198.7 mi 319.7 km
Flying Distance
143.2 mi 230.4 km

Route Information

The driving distance from Ajax, South Dakota to Fort Pierre, South Dakota is 198.7 mi (319.7 km)

The straight-line (air) distance is 143.2 mi (230.4 km)

The estimated flight time is 0 hr 17 min

The estimated travel time by road is 2 hours 48 minutes

Traveling highway, long-distance in a east direction. Average speeds around 63 mph.

Location Details

Origin:


No image available
Place Ajax
State/Province South Dakota
Country US
Latitude 43.89749
Longitude -103.181851
GPS 43.89749° N, 103.181851° W
Local Time 10:20 AM
Timezone America/Denver

Destination:

Fort Pierre
Place Fort Pierre
State/Province South Dakota
Country US
Latitude 44.353593
Longitude -100.373745
GPS 44.353593° N, 100.373745° W
Local Time 10:20 AM
Timezone America/Denver

Journey Summary

Traveling from Ajax, South Dakota to Fort Pierre, South Dakota covers 198.7 mi (319.7 km) in a east direction. This highway, long-distance route typically takes 2 hours 48 minutes under normal conditions.

Drivers have 3 route options between these locations (182.1-206.3 miles / 293-332 km). The primary route shown here saves 24 minutes compared to alternatives.

The route features scenic views along the way. with average speeds around 63 mph (101 km/h).

Available Routes

I-90 E
198.7 mi 2 hours 48 minutes
Shortest
SD-44 E and I-90 E
206.3 mi 3 hours 8 minutes
I-90 E and US-14 E
182.1 mi 2 hours 45 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.