Relationship Calculator: What Is My Cousin to Me?

Work out second cousins, first cousins once removed and every other relationship, with the average amount of DNA you'd share.

Find the most recent ancestor you and your relative share. Then choose how each of you descends from that ancestor.

Cousins of the same generation share the same "degree": children of siblings are 1st cousins, their children are 2nd cousins, and so on. "Removed" means you're from different generations: your parent's 1st cousin is your 1st cousin once removed. For more, read Cousin Relationships Explained. Average DNA figures are approximate, based on the Shared cM Project.