What is a eighth cousin?
Your eighth cousins share a 7× great-grandparent with you, nine generations back. Your 6× great-grandparents were siblings. Each of you stands nine generations below that shared couple, which sets the cousin degree at eighth with no generations 'removed'. Cousins this distant almost always surface through records research or DNA matches rather than family memory.
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FAQs
How are eighth cousins related?+
Eighth cousins descend from the same 7× great-grandparents: their 6× great-grandparents were siblings.
What is my eighth cousin's child to me?+
Your eighth cousin's child is your eighth cousin once removed — each generation down adds one 'removed'.
Does the calculator store my family details?+
No — it runs entirely in your browser. Nothing you enter is uploaded or saved on our servers.
Start with one relative and see what comes back.
Add what you remember and AncestorIQ searches for the rest. Free to build your tree for as long as you like.
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