Geodesic Calculator
Great-circle calculations on the WGS84 globe: distance & bearing between two points, their midpoint, and a destination from a start point, bearing and distance.
Two points → distance, bearing, midpoint
Distance—
Initial bearing—
Final bearing—
Midpoint (lat, lon)—
Start + bearing + distance → destination
Destination (lat, lon)—
About the geodesic calculator
Geodesic calculations find the shortest path (a great circle) between points on the curved surface of the Earth. This tool computes the distance and bearing between two points, their midpoint, and the destination you reach from a start point given a bearing and distance — all on the WGS84 globe.
How to use it
- Enter two points to get distance, initial & final bearing and the midpoint.
- Or enter a start point, bearing and distance to get the destination coordinates.
Frequently asked questions
Why do initial and final bearings differ?
On a sphere the compass direction of a great-circle route changes as you travel, so the bearing leaving point A differs from the bearing arriving at point B.
What is bearing measured from?
Degrees clockwise from true north: 0° = N, 90° = E, 180° = S, 270° = W.