The shortest distance between two points is a straight line, and that’s as true on a globe as it is on a flat map. However, because of how distorted maps make the earth appear, that straight line appears as an arc. These are known as Great Circle Arcs, and generally represent the flight paths of aircraft.
Use the input box below to enter coordinates so that you can see these great circle arcs yourself.
Coordinates are accepted in this format: 21.3245N 157.9251W
Use > to route between coordinates and , to separate routes.