# How many Centimorgans would be shared with half niece?

Show activity on this post. Your half niece and you would share between 500-1446 cM, according to the Shared cM Project.

## How much DNA do I share with a half niece?

Percent DNA Shared by Relationship

Relationship Average % DNA Shared Range
Parent / Child Full Sibling 50% Varies by specific relationship
Grandparent / Grandchild Aunt / Uncle Niece / Nephew Half Sibling 25% Varies by specific relationship
1st Cousin 12.5% 7.31% – 13.8%
1st Cousin once removed 6.25% 3.3% – 8.51%

## How does a half aunt show up on ancestry DNA?

Half-siblings, generally speaking, will show up in the “Close Family” category on Ancestry DNA. It is also possible for half-siblings to be placed in the “first cousin” category, since the categorization of our matches is based on the amount of shared DNA.

## How much DNA do half uncles and nieces share?

Average Percent DNA Shared Between Relatives

Relationship Average % DNA Shared Range
Identical Twin 100% N/A
Parent / Child 50% (but 47.5% for father-son relationships) N/A
Full Sibling 50% 38% – 61%
Grandparent / Grandchild Aunt / Uncle Niece / Nephew Half Sibling 25% 17% – 34%

## How many cM of DNA do aunts and nieces share?

23andMe

Relationship Range in percentages Range in centiMorgans
Parent / child 50% ~3719 CM
Father / son (no X sharing) 47.54% ~3536 cM
Full sibling 38% – 61% 2826 – 4537 cM
Grandparent / grandchild; Aunt / uncle; Niece / nephew; Half siblings 17% – 34% 1264 – 2529 cM

## What is half niece?

Definition of half niece

: the daughter of a half brother or half sister.

## How much am I related to my niece?

The range for niece/nephew (121-2227 cM) translates to 1.7-31.8%. That is an amazingly wide range, and 16% definitely falls within it!

## How many cm would a half aunt share?

As you can see from the centimorgan chart, a centimorgan range of 575 to 1330 could mean the DNA match is a first cousin, half aunt, or even a grandparent.

## How many shared centimorgans is significant?

For example, you’ll usually share about 120 centimorgans with a 3rd cousin, but it’s possible to share as few as 90 or as many as 200.
What does the match confidence score mean?

Approximate amount of shared DNA (in centimorgans) Possible relationship
200—620 2nd cousin
90—180 3rd cousin
20—85 4th cousin
6—20 Distant cousin: 5th cousin — 8th cousins

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