Cousins & Relationships

These tools answer how two people are related and what that relationship is called, from the common ancestor or from a family tree file.

Tools in this group

  • Cousin Calculator — Choose how many generations you and the other person are below your common ancestor, or look a cousin up by degree and times removed. You get the name, a family diagram and the expected shared DNA.
  • Cousin Chart — Read the name of any cousin relationship from degree and times removed, then print the chart or save it as CSV or PNG.
  • First Cousin Once Removed — See who a first cousin once removed is, drawn as a family diagram, and swap the viewpoint to see it from their side. Change degree and removal for any cousin.
  • Inbreeding Calculator — Choose how the parents are related, or edit their common ancestors, and get the child's inbreeding coefficient with every step shown. Or open a family tree file and read it for any person.
  • Kinship Terms — Pick a language and see the family word for each of 99 relatives, or compare up to four languages side by side. Entries show whether they come from a cited source or are still unconfirmed.
  • Relationship Calculator — Choose how many generations you and the other person are from your shared ancestor, or open a family tree file, and see the relationship, its degree and how much ancestry you share.
  • Relationship Chart — A family relationship chart you can change: choose their sex, full or half relatives and how many generations to show, then print it, save it as an image or copy it as CSV.