What is a fourth cousin once removed?
A fourth cousin once removed is your fourth cousin's child, or your parent's fourth cousin. You connect through a shared 3× great-grandparent line, and 'once removed' marks the one-generation gap: one of you stands five generations below the common ancestor and the other six.
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FAQs
What does 'once removed' mean?+
'Removed' counts the generation gap between two cousins: once removed means a one-generation difference.
Is a fourth cousin once removed the same as a fifth cousin?+
No. A fifth cousin sits in your own generation; a fourth cousin once removed is one generation away from yours.
Does the calculator store my family details?+
No — it runs entirely in your browser. Nothing you enter is uploaded or saved on our servers.
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