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Distance from Duncan to Clear Lake
Route Information
The driving distance from Duncan, Iowa to Clear Lake, Iowa is 17.1 mi (27.6 km)
The straight-line (air) distance is 17.0 mi (27.4 km)
The estimated flight time is 0 hr 2 min
The estimated travel time by road is 20 minutes
Traveling mixed highways and local roads, moderate in a east direction. Average speeds around 48 mph.
Location Details
Origin:
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Destination:
Journey Summary
Traveling from Duncan, Iowa to Clear Lake, Iowa covers 17.1 mi (27.6 km) in a east direction. This mixed highways and local roads, moderate route typically takes 20 minutes under normal conditions.
The route features scenic views along the way. with average speeds around 48 mph (77 km/h).
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.