How many cm of DNA should you have with a grand aunt? Or percentage?

Question

Could someone please tell me how many cm of DNA you should have with a grand aunt or percentage .

THank you

Comments

You've already received some good answers, Shannon, so I'll just toss in that the theoretical average sharing for a grand aunt would be 12.5%, which is genetically equivalent to a 1st cousin and a great-grandparent. If there's no recent pedigree collapse, that number won't be highly variable, but it's still just a baseline. Depending upon which testing/reporting service is being consulted, in centiMorgans that will display in a range from 846cM to 897cM (the range has to do with what the site uses as the total, sex-averaged cM value of a genome; goes from 6,768cM to 7,175cM).

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Thank you very much to all the people that commented.  It was much appreciated.

And some great information

Answer 1

I share 832 cm. with my maternal half-aunt, which would be the same amount one would share with a full grand aunt

Answer 2

Here is a chart that answers questions such as yours: https://dnapainter.com/tools/sharedcmv4

Answer 3

I share 530cM with a Half Great Uncle.

Answer 4

About 850cM.

There is a helpful table here: https://isogg.org/wiki/Autosomal_DNA_statistics