Cousin Calculator

To calculate a relationship of two individuals, put the common ancestor in cells 0 and a. Cells 1 and b would be siblings (brothers, sisters, or brother/sister). List the descendants for each sibling on their row or column. Then follow those line down and across. Where they meet is the relationship.

CA = Common ancestor, C = Child or Cousin, G = Grand, GG = Great Grand, N = Niece/Nephew, S = Sibling, R = Number of times removed.
See sample below. | Printable Copy

	0	1	2	3	4	5	6	7	8	9	10
a	CA	C	GC	GGC	2GGC	3GGC	4GGC	5GGC	6GGC	7GGC	8GGC
b	C	S	N	GN	GGN	2GGN	3GGN	4GGN	5GGN	6GGN	7GGN
c	GC	N	1C	1C1R	1C2R	1C3R	1C4R	1C5R	1C6R	1C7R	1C8R
d	GGC	GN	1C1R	2C	2C1R	2C2R	2C3R	2C4R	2C5R	2C6R	2C7R
e	2GGC	GGN	1C2R	2C1R	3C	3C1R	3C2R	3C3R	3C4R	3C5R	3C6R
f	3GGC	2GGN	1C3R	2C2R	3C1R	4C	4C1R	4C2R	4C3R	4C4R	4C5R
g	4GGC	3GGN	1C4R	2C3R	3C2R	4C1R	5C	5C1R	5C2R	5C3R	5C4R
h	5GGC	4GGN	1C5R	2C4R	3C3R	4C2R	5C1R	6C	6C1R	6C2R	6C3R
i	6GGC	5GGN	1C6R	2C5R	3C4R	4C3R	5C2R	6C1R	7C	7C1R	7C2R
j	7GGC	6GGN	1C7R	2C6R	3C5R	4C4R	5C3R	6C2R	7C1R	8C	8C1R
k	8GGC	7GGN	1C8R	2C7R	3C6R	4C5R	5C4R	6C3R	7C2R	8C1R	9C

Sample Cousin Calculator

In the samples below Willard and Samuel are third cousins three times removed. Velma and Lura are seventh cousins twice removed.

blank	Benjam-	Nathan-	Samuel	William	Samuel	Samuel	Isaac	Franklin	Lura	9	10
Benjam-	CA	C	GC	GGC	2GGC	3GGC	4GGC	5GGC	6GGC	7GGC	8GGC
Joseph	C	S	N	GN	GGN	2GGN	3GGN	4GGN	5GGN	6GGN	7GGN
Benjam-	GC	N	1C	1C1R	1C2R	1C3R	1C4R	1C5R	1C6R	1C7R	1C8R
Benjam-	GGC	GN	1C1R	2C	2C1R	2C2R	2C3R	2C4R	2C5R	2C6R	2C7R
Benjam-	2GGC	GGN	1C2R	2C1R	3C	3C1R	3C2R	3C3R	3C4R	3C5R	3C6R
Benjam-	3GGC	2GGN	1C3R	2C2R	3C1R	4C	4C1R	4C2R	4C3R	4C4R	4C5R
Zimri	4GGC	3GGN	1C4R	2C3R	3C2R	4C1R	5C	5C1R	5C2R	5C3R	5C4R
Willard	5GGC	4GGN	1C5R	2C4R	3C3R	4C2R	5C1R	6C	6C1R	6C2R	6C3R
Justus	6GGC	5GGN	1C6R	2C5R	3C4R	4C3R	5C2R	6C1R	7C	7C1R	7C2R
Franklin	7GGC	6GGN	1C7R	2C6R	3C5R	4C4R	5C3R	6C2R	7C1R	8C	8C1R
Velma	8GGC	7GGN	1C8R	2C7R	3C6R	4C5R	5C4R	6C3R	7C2R	8C1R	9C

Last update May 9, 2002