What is my half-sister's grandchild to me?

Your half-sister's grandchild is your half-great-niece or half-great-nephew. Your half-sister shares one parent with you, and their grandchild sits two generations further down the same line. From the other side, you are their half-great-aunt or half-great-uncle — each further generation down adds another 'great' to both titles.

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FAQs

What would my half-sister's grandchild be to me?+

Your half-sister's grandchild would be your half-great-niece or half-great-nephew — the term is fixed by the generations between you, however you phrase the question.

Who am I to my half-sister's grandchild?+

You are their half-great-aunt or half-great-uncle.

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.

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