A kilometre is a measure of length or distance in 1-dimensional space while a square kilometre is a measure of area in 2-dimensional space. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid without some addition information. It is, therefore, impossible to round kilometres to square kilometres.
The address of the Foundation For The Preservation Of Honey Bees Inc is: Po Box 1445, Jesup, GA 31598-6445