How Much DNA Do You Share with Your AncestryDNA Matches?

AncestryDNA doesn't make it intuitive to find out how much DNA you share with your matches - but they do provide the information. This information is important because it helps determine if a match is one that deserves focus.

How to Locate a DNA Match

Unfortunately, AncestryDNA doesn't allow people to search for DNA matches by username. However, you can search for matches who show a specific surname in their tree:

Step 1 - Navigate to the correct set of matches
  • Navigate to your Ancestry DNA page
  • If you manage multiple DNA tests, click "View another test" at the top right of the page and select the appropriate test
Step 2 - View All DNA Matches
  • Click "View all DNA matches" at the bottom of the center column; you'll be presented with a list of perhaps hundreds of pages of matches
Prepare for search
Step 3 - Search matches for a specific ancestral surname
  • Click "Search matches" at the top right of the page
  • Enter the surname you want to search for at the top right; this searches public trees for people who descend from someone with that surname
Prepare for search


This method doesn't work for people who don't have Ancestry trees - or whose trees are limited. Instead, view a match of someone who's a known member of the line of interest. Click the center button, "Shared Matches," and then select the appropriate person. This sometimes takes a couple of tries to find someone who matches both you and the person in question.

Inspect the Amount of Shared DNA

  • Once you've located the appropriate individual, click "View Match" in the right column
  • At the very top of the match, you'll see a predicted relationship; click on the "i" icon below it next to the "Confidence Level"
  • You'll then see a pop-up box that says something like "209 centimorgans shared across 9 DNA segments
  • Record those figures


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