The great-circle distance, orthodromic distance, or spherical distance is the distance between two points on a sphere, measured along the great-circle arc between them.

Use Great Circle Mapper to calculate the distance and flight duration between all airports worldwide and draw the flight route on a map.

Mar 6, 2026 · The Great Circle Mapper displays maps and computes distances along a geodesic path. It includes an extensive, searchable database of airports and other locations.

Enter two or more airports to draw a route between them on the map and calculate the distance.

Want to know the shortest distance between two cities, airports, or points on Earth? The Great Circle Distance Calculator helps you measure that exact path — the one aircraft actually follow — using …

Jul 23, 2025 · A great circle represents the shortest path between two points on a sphere, often used in aviation and navigation (e.g., flying from one city to another). They are important in navigation, as the …

The great circle distance is the length of an arc between two points belonging to a circumference passing through the center of a sphere or ellipsoid. Great circles are straight lines on a sphere but …

Traveling long distances on Earth or planning logistics between two locations requires an understanding of the shortest path across the globe. The Great Circle Distance Calculator is a …

Enter the coordinates of two points in decimal degrees and the tool returns the great circle distance, typically in both kilometers and miles. The result represents the idealized shortest surface distance …

May 17, 2025 · The great-circle distance formula is a powerful tool that computes the shortest distance between two points on the surface of a sphere. Unlike linear Euclidean distance, which is suited for …