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Distance from Adrian to Round Prairie

Driving Distance
275.7 mi 443.7 km
Flying Distance
200.0 mi 321.8 km

Route Information

The driving distance from Adrian, Illinois to Round Prairie, Illinois is 275.7 mi (443.7 km)

The straight-line (air) distance is 200.0 mi (321.8 km)

The estimated flight time is 0 hr 24 min

The estimated travel time by road is 4 hours 49 minutes

Traveling mixed highways and local roads, long-distance in a southeast direction. Average speeds around 53 mph.

Location Details

Origin:


No image available
Place Adrian
State/Province Illinois
Country US
Latitude 40.520877
Longitude -91.16709
GPS 40.520877° N, 91.16709° W
Local Time 1:00 AM
Timezone America/Chicago

Destination:


No image available
Place Round Prairie
State/Province Illinois
Country US
Latitude 38.45727
Longitude -88.539218
GPS 38.45727° N, 88.539218° W
Local Time 1:00 AM
Timezone America/Chicago

Journey Summary

Traveling from Adrian, Illinois to Round Prairie, Illinois covers 275.7 mi (443.7 km) in a southeast direction. This mixed highways and local roads, long-distance route typically takes 4 hours 49 minutes under normal conditions.

Drivers have 3 route options between these locations (268.0-293.5 miles / 431-472 km). The primary route shown here saves 4 minutes compared to alternatives.

The route features scenic views along the way. with average speeds around 53 mph (85 km/h).

Available Routes

I-64 E
275.7 mi 4 hours 49 minutes
Shortest
US-61 S/Ave of the Saints and I-64 E
293.5 mi 4 hours 50 minutes
IL-125 E
268 mi 4 hours 47 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.