Waypoints
A
B
Total distance
2080.96 nm
Initial bearing
251.8Β°T
Final bearing
233.7Β°T
Midpoint (AβB)
30.741490, -141.639819Travel time at speed
kn β173.41 h (173h 25m)
Haversine distance, bearings, midpoint, and multi-waypoint routes with map and GPX export.
30.741490, -141.639819Your vote is saved on this device only.
The Great Circle Distance Calculator finds the shortest path between two points on Earth using the Haversine formula, then reports the initial bearing, final bearing, and midpoint coordinates. Enter latitude and longitude pairs, add up to twelve waypoints to build a multi-leg route, switch the total between nautical miles, kilometers, or statute miles, and see every leg drawn on an interactive map.
It is built for navigators, sailors, pilots, and anyone planning long-haul routes or estimating sea passages. The tool is free and runs entirely in your browser, so the coordinates you type never leave your device and nothing is uploaded. Copy the midpoint or export the whole route as GPX to load into your chartplotter or GPS.
No. All calculations happen locally in your browser, so your latitude and longitude values stay on your device and are never uploaded.
Use decimal degrees in 'lat, lon' order, for example '37.97, 23.72'. Southern and western values are negative.
A great-circle path constantly curves relative to true north, so the tool shows both the initial bearing at the start point and the final bearing arriving at the destination.
Yes. Use Copy GPX or Download GPX to get a GPX 1.1 file containing your waypoints, ready to import into most navigation software and devices.
You can add up to twelve points. Distance and bearings are calculated for each leg and summed into a total for the whole route.