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Distance from Grant to Interior

Driving Distance
512.5 mi 824.8 km
Flying Distance
399.7 mi 643.2 km

Route Information

The driving distance from Grant, Iowa to Interior, South Dakota is 512.5 mi (824.8 km)

The straight-line (air) distance is 399.7 mi (643.2 km)

The estimated flight time is 0 hr 48 min

The estimated travel time by road is 7 hours 23 minutes

Traveling highway, long-distance in a west direction. Average speeds around 61 mph.

Location Details

Origin:


No image available
Place Grant
State/Province Iowa
Country US
Latitude 41.142768
Longitude -94.984708
GPS 41.142768° N, 94.984708° W
Local Time 6:13 PM
Timezone America/Chicago

Destination:

Interior
Place Interior
State/Province South Dakota
Country US
Latitude 43.726938
Longitude -101.984042
GPS 43.726938° N, 101.984042° W
Local Time 5:13 PM
Timezone America/Denver

Journey Summary

Traveling from Grant, Iowa to Interior, South Dakota covers 512.5 mi (824.8 km) in a west direction. This highway, long-distance route typically takes 7 hours 23 minutes under normal conditions.

Drivers have 3 route options between these locations (486.8-534.8 miles / 783-861 km). The primary route shown here saves 27 minutes compared to alternatives.

The route features scenic views, toll sections. with average speeds around 61 mph (98 km/h).

Available Routes

I-29 N and I-90 W
512.5 mi 7 hours 23 minutes
Shortest Fastest Tolls
US-59 N and I-90 W
534.8 mi 8 hours 29 minutes
Tolls
US-275 W
486.8 mi 8 hours 2 minutes
Tolls

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.