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Why does a radius search show results farther away than the selected distance?

This article explains how radius search areas are determined and why results may extend beyond the selected distance.

When performing a radius search (for example, “3 km around a location”), the system calculates the area in a way that may result in places appearing farther away than the selected distance.

Why not calculate from the exact center of the location?
If the radius were measured strictly from the location’s central point, the search would cover only a small circle within that area.

  • For locations larger than the selected radius, this approach could exclude places near the outer edges, leading to incomplete results.

How the radius is calculated instead

  1. A boundary is drawn to cover the entire selected location.

  2. This boundary is then extended outward by the chosen radius (e.g., 3 km) in all directions.

As a result, the search area fully includes the location and the surrounding radius. This ensures no relevant areas are missed, although some results may be located farther from the center than the selected distance.