Description:Great Circle Tool is a precise navigation utility that plots the shortest path between two points on the globe. Designed for pilots, sailors, and travelers, it calculates great circle distance, initial and final bearings, and key waypoints on an interactive map. Quickly compare routes, switch units between nautical miles, kilometers, and miles, and choose coordinate formats to match your workflow. With fast search for cities, airports, or coordinates and a clean interface, it is a reliable great circle distance calculator and bearing planner for aviation, marine, and overland navigation.
How to use:1. Install and open Great Circle Tool, then grant location permission if requested.
2. Set your start point by tapping the map, searching a city or airport, or entering coordinates.
3. Add a destination the same way to instantly plot the great circle route on the map.
4. Review distance and initial and final bearings, and change units or coordinate formats in settings.
5. Add optional waypoints to refine the path, then save or share the route for later use.