How big does a yorkie half toy poodle get?

As big as a illbred mutt can get! WHo knows its a mutt which means there is no standard!
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It will most likely stay with in the size of both because they are both toy dogs and are around the same size,
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It's a mutt, there's no breed standard or way of predicting. Probably somewhere between the weight of its parents.
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Your dog sounds like a nice cross breed, I bet he is really cute. You did not say how old your dog is, however, once dogs reach around 9 months of age they stop growing height wise and start filling out bodywise after that. I hope that helps with your question.
And remember….."Dogs Love Hugs"
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http://www.dogsgossip.com

It is hard to say as you don't mention his age. At 9 months- 1 year her should be about full size. If you know how big his parents were you should have a better idea. Impossible to say without knowing his age, but I doubt he'd get more than a few lbs bigger, if even.
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nope thats about it
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your so lucky you have a yorkipoo!!!

did you see the parents? the dog should be the size of one of them soo the dog shouldn't weigh more then one of the parents unless you feed your dog too many treats and human food.

a yorkipoo should weigh between 5-8 pounds
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There is no way to tell for certain. Since the dog is essentially a mutt and not a purebred dog, there is no recognized breed standard. You can never tell which genes the dog will inherit from which parent/breed.
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Yorkie breeder 10+ years