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Distance from Adrian to Round Prairie
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:
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Destination:
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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
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.