Distance Calc

The Haversine formula calculates the great-circle distance between two points on a sphere given their latitudes and longitudes. It accounts for the curvature of the Earth.

No. This calculates the straight-line (as the crow flies) distance. Actual driving or flying distances will be longer due to routes, terrain, and flight paths.

The Haversine formula is accurate to within 0.5% for most practical purposes. It assumes a perfectly spherical Earth.