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The Great Circle Mapper displays maps and computes distances along a geodesic path. It includes an extensive, searchable database of airports and other locations.
Use Great Circle Mapper to calculate the distance and flight duration between all airports worldwide and draw the flight route on a map.
Use Great Circle Mapper to calculate the distance and flight duration between all airports worldwide and draw the flight route on a map.
How to Use Great Circle Mapper Like a Pro. Great Circle Mapper, also known as “GCMap” and available at gcmap.com, has been a beloved tool among dedicated aviation geeks for quite some time. More recently, it has become even more valuable for Canadians with Aeroplan’s implementation of distance-based reward pricing.
A map from the Great Circle Mapper - Great Circle Mapper. Map Controls. Paths. Ranges. Markers.
A great circle path is the shortest path on the surface of a sphere between two points on that sphere. Since Earth is not a true sphere, the proper term is a geodesic path though great circle is commonly used.
