Actually, there's a site to help answer the question "how closely are we related?" https://www.relativefinder.org https://www.relativefinder.org It uses infor

Actually, there's a site to help answer the question "how closely are we related?" https://www.relativefinder.org https://www.relativefinder.org It uses information from https://www.familysearch.org/ https://www.familysearch.org/ (sponsored by the LDS church, but widely used by those interested in genealogy). To get started, you'd need to enter some data to get back to your deceased ancestors. My wife and I are "9th cousins once removed" (common ancestor 10-11 generations back).