For a full guide to each of these steps, see the Free DNA Resources page
Finding how many centiMorgans (cMs) you share with a DNA match lets you get a better understanding of the ways in which the two of you may be related.
The information sheet on How much DNA do we share? described ways of finding the many possible relationships based on a given amount of shared cMs. Today’s information sheet looks at how you go about finding the number of cMs you share with your matches on the main testing/comparison sites – Ancestry, Family Tree DNA, 23andMe, MyHeritage and GEDMatch.
Click here to see all the information sheets currently available.
Finding the cMs on Ancestry is a popular question – this graphic provides a quick overview: