How many cousins does the average person have?
There is no official count, but the math is simple: if each of your parents has two siblings and each sibling has two children, you have eight first cousins. Because every generation multiplies the branches, most people also have a few dozen second cousins and hundreds of third cousins they have never met.
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FAQs
How many cousins do I have in total?+
Count your aunts' and uncles' children for first cousins, then your parents' cousins' children for second cousins — the number grows several-fold with each degree.
Why do DNA tests show so many cousin matches?+
DNA services match third and fourth cousins too, and most people have hundreds of thirds and thousands of fourths — far more than anyone tracks by name.
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.
No credit card needed. Your tree stays yours.
