How to visually debug Physics.OverlapSphere?

the only thing that came to my mind is to create a sphere object and give it same size and location of Physics.OverlapSphere the problem is unity sphere is getting a vector3 as size and not a radius so I cant get to to be on same size;

 

The scale will be Radius * 2.

 

this free asset has a lot of extra debug.draw methods, such as one that can draw spheres.
https://www.assetstore.unity3d.com/en/#!/content/11396

 

thanks I think that's it working great

why unity dont provide built in function for that otherwise when I use Physics.OverlapSphere with some radius it's just guessing

 

Code (CSharp):

1. private void OnDrawGizmos()
2.         {
3.             Gizmos.DrawWireSphere(position, radius);
4.         }