How to use this tool
- Enter your values or try the example.
- Run the tool and check the result.
- Save the result where a download is available.
Supported features & limits
Enter decimal WGS84 latitude and longitude. Uses a sphere with mean radius 6371.0088 km. No address lookup, road routing or elevation. Values are approximate; an ellipsoidal geodesic may differ by about 0.5%. Bearings at antipodal or coincident points are undefined.
What happens to my files?
Your browser reads the file locally. File contents are not sent to our server. Closing or resetting this page clears the working result. Downloaded copies remain on your device.
Maintained by Roman Zmazhenko. Updated 1 November 2026.