What is a ninth cousin?
Your ninth cousins share a 8× great-grandparent with you, ten generations back. Your 7× great-grandparents were siblings. Each of you stands ten generations below that shared couple, which sets the cousin degree at ninth 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 ninth cousins related?+
Ninth cousins descend from the same 8× great-grandparents: their 7× great-grandparents were siblings.
What is my ninth cousin's child to me?+
Your ninth cousin's child is your ninth 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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