The greatβcircle route is the shortest path between two points on the surface of a sphere, following the intersection of the sphere with a plane that passes through its centre.
For navigation the haversine formula converts latitude and longitude differences into a central angle, which is then multiplied by the Earthβs radius to obtain the distance.
Shipping companies use this calculation to estimate fuel consumption, transit time, and to comply with maritime regulations that depend on the precise length of a voyage.
What is a great-circle route?
How does the haversine formula work?
Can I use this calculator for any location?
What is the difference between great-circle distance and straight-line distance?
How accurate is this distance calculation?
Can I use this formula for other celestial bodies?
What units does this calculator output?
Results are for informational purposes only and do not constitute professional advice.
