A family relationship chart is a visual guide that shows how two people connect through the same ancestor. Use this free family tree relationship chart to identify cousins, removed cousins, great-aunts/uncles, and other tricky family links instantly.
Choose each person's position relative to a common ancestor, then read the highlighted cell in the interactive cousin chart below. It is a fast answer for any "how are we related" question.
Rows represent Person A. Columns represent Person B. Tap any cell to load that exact pair of generations and highlight the correct relationship name.
Selected chart cell
First cousin once removed
Person A is grandchild of the common ancestor, and Person B is great-grandchild.
Cousin line
First cousin
Removed
1 generation
| Person A ↓ Person B → | Self Common ancestor | Child 1 down | Grandchild 2 down | Great-grandchild 3 down | 2x great 4 down | 3x great 5 down | 4x great 6 down | 5x great 7 down | 6x great 8 down |
|---|---|---|---|---|---|---|---|---|---|
Self Common ancestor | |||||||||
Child 1 generation down | |||||||||
Grandchild 2 generations down | |||||||||
Great-grandchild 3 generations down | |||||||||
2x great 4 generations down | |||||||||
3x great 5 generations down | |||||||||
4x great 6 generations down | |||||||||
5x great 7 generations down | |||||||||
6x great 8 generations down |
Long relationship names wrap inside each cell, and the selected row and column stay highlighted so you can trace how the answer is derived.
This free family relationship chart works well for reunion planning, genealogy research, and any family tree relationship chart question where the answer is not obvious at a glance.
Select how Person A is related to the common ancestor, starting from self and going down through children, grandchildren, and deeper generations.
Select Person B's position under that same common ancestor using the same generation list.
The calculator immediately names the relationship and highlights the matching cell inside the family relationship chart.
Check the summary beneath the selectors to understand why the result is a sibling, aunt or uncle, cousin, or cousin once removed relationship.
Want to turn a quick chart answer into a living family archive? Explore the main Family Roots product.
Common questions about cousin charts, removed cousins, and how to read a family tree relationship chart.
A family relationship chart is a visual reference that shows how two people are connected through the same ancestor. It helps you identify direct relatives, siblings, aunts and uncles, cousins, and cousin once removed relationships without doing the math manually.
Count how far each person is from the shared ancestor. If both are grandchildren of the same ancestor, they are first cousins. If both are great-grandchildren, they are second cousins. If both are 2x great-grandchildren, they are third cousins.
Once removed means the two relatives are one generation apart even though they belong to the same cousin line. For example, your parent's first cousin is your first cousin once removed, and your first cousin's child is also your first cousin once removed.
These are side-branch relationships rather than cousin relationships. A great-aunt or great-uncle is one generation above an aunt or uncle, while a great-niece or great-nephew is one generation below a niece or nephew.
A family tree relationship chart removes ambiguity when a family line gets more complex. It is especially useful for cousin once removed chart questions, reunion planning, and any 'how are we related' scenario.