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View Full Version : One to many gedmatch and cM question



Gründig
01-08-2019, 02:01 AM
I've never really looked into my one to many matches on gedmatch before.

What cM length is considered a big size? Does a certain size indicate anything? What should I be looking for?

nittionia
01-08-2019, 02:10 AM
This is a tool where you can put the cM size into the calculator and it'll give you possible scenarios:
https://dnapainter.com/tools/sharedcmv4


Here is a guideline:

https://i.imgur.com/UGSrUgl.png

Third cousins (0- 215 cMs, average 47 cMs)
Fourth cousins (0- 27 cMs, average 21 cMs)
Fifth cousins (0 – 25 cMs, average 17 cMs)
Sixth cousins (0 – 21 cMs, average 15 cMs)
Seventh cousins (0 – 17 cMs, average 13 cMs)
Eighth cousins (0 – 12 cMs, average 13 cMs)

Peterski
01-08-2019, 03:11 AM
Over 10 cM is worth paying attention to.