Consanguinity

What is Consanguinity?

Have you ever wondered what to call your mother's cousin's grandchildren? Consanguinity is the world's easiest, fastest, and most obscurely named cousin calculator. Just tell it what ancestor you and a relative have in common, and Consanguinity will teach you the name for your kinship. Become your family's genealogy expert!

Download Consanguinity for free from the App StoreSM today! Available for iPhone® and iPad®.

Tell your friends! Do it.

Choose an Ancestor!

Pick the most recent ancestor* that you and your relative both descend from. A list of the most common ones makes it easy!

* Starting at grandparent and going back in time. Parents are not supported. If you and a relative share two biological parents, then you are siblings; if you share at most one parent, then you are half-siblings. If you share 3 or more biological parents, then take me to your leader.

Go Further Back!

So that list wasn't enough for y'all, eh?* No problem! You can explore that family tree as far back as you need** using the "More Greats" screen. Consanguinity will teach you what having the same great great great great great *deep breath* great great great grandparents is called.

* Sorry for mixing regional dialects, y'all!

** Up to 100. Need more? Too bad!

Waaaaay Back!

While it's unlikely that you and another person are aware that y'all share an ancestor 50 generations back, Consanguinity does not discriminate against families who keep such meticulous genealogical records.*

On the other hand, it's actually quite possible that you and another person are descendants of Genghis Khan. Just figure out how many generations separate you from the potent Mongol conqueror, and you're good to go!

* Eg, the dispossessed nobility. Life's tough enough for them as it is.

Privacy Policy

Consanguinity does not access, store, or collect any data from your device.