No.
is there any other way to define a radius with reference
thanks
Not sure what you mean by "with reference".
I found a solution for this
create a defined radius in KML format and then convert to GPX
http://kml4earth.appspot.com/circlegen.html
Thanks for the tips on GeoFence Circular increase or decrease in size coverage from the default circular size!
https://kml4earth.appspot.com/circlegen.html
And converter from KML to GPX then upload the file to GeoFence and give a location name and it is done!
https://kml2gpx.com/
it is possible to preview the radius size in km when drawing the circle