Schwartzhild radius Mar 3, 2012 22:06:45 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by egalaxy on Mar 3, 2012 22:06:45 GMT -5 The schwartzchild radius is the radius an object must become to be a black hole. See the widget below to enter a weight or object (but that wont always work) into the box and calculate!