Whether you are looking up the percentage DNA Shared between your known relationship or have just got back your DNA results and want to know what the possible relationships are between you and your matches the checklist below will help you figure out the possibilities.

Identical Twins

100% DNA Shared

Parent/Child

50% DNA Shared

Full Siblings

50% DNA Shared (Approx)

Half Siblings

25% DNA Shared (Approx)

Grandparent/Grandchild

25% DNA Shared (Approx)

Aunt-Uncle/Nephew-Niece

25% DNA Shared (Approx)

Double First Cousins

25% DNA Shared (Approx)

Great Grandparent/Great Grandchild

12.5% DNA Shared (Approx)

First Cousins

12.5% DNA Shared (Approx)

Great Aunt-Uncle/Great Nephew-Niece

12.5% DNA Shared (Approx)

Half Uncle-Aunt/Half Nephew-Niece

12.5% DNA Shared (Approx)

First Cousins Once Removed

6.25% DNA Shared (Approx)

Half First Cousins

6.25% DNA Shared (Approx)

Great Great Aunt-Uncle/Great Great Nephew-Niece

6.25% DNA Shared (Approx)

Half Great Aunt-Uncle/Half Great Nephew-Niece

6.25% DNA Shared (Approx)

Double Second Cousins

6.25% DNA Shared (Approx)

Second Cousins

3.125% DNA Shared (Approx)

First Second Twice Removed

3.125% DNA Shared (Approx)

Half First Cousin Once Removed

3.125% DNA Shared (Approx)

Half Great Great Aunt-Uncle/Half Great Great Nephew-Niece

3.125% DNA Shared (Approx)

Second Cousins Once Removed

1.563% DNA Shared (Approx)

Half Second Cousins

1.563% DNA Shared (Approx)

First Cousins Three Times Removed

1.563% DNA Shared (Approx)

Half First Cousins Twice Removed

1.563% DNA Shared (Approx)

Third Cousins

0.781% DNA Shared (Approx)

Second Cousins Twice Removed

0.781% DNA Shared (Approx)

Third Cousins Once Removed

0.391% DNA Shared (Approx)

Fourth Cousins

0.195% DNA Shared (Approx)

Third Cousins Twice Removed

0.195% DNA Shared (Approx)

Fourth Cousins Once Removed

0.0977% DNA Shared (Approx)

Third Cousins Three Times Removed

0.0977% DNA Shared (Approx)

Fifth Cousins

0.0488% DNA Shared (Approx)

Fifth Cousins Once Removed

0.0244% DNA Shared (Approx)

Sixth Cousins

0.0244% DNA Shared (Approx)

Sixth Cousins Once Removed

0.0061% DNA Shared (Approx)

Seventh Cousins

0.00305% DNA Shared (Approx)

Seventh Cousins Once Removed

0.001525% DNA Shared (Approx)

Eighth Cousins

0.000763% DNA Shared (Approx)

This list is also available on Ancestry too.