Many people are at least interested in having an idea of the adult weight of their Yorkie puppy. This is a very tricky thing to predict. A lot has to be taken in to consideration including genetics (weights and build of parents and grandparents) and environmental factors (is the puppy weaned or not, has he been sick, etc).
There are a lot of “Yorkie Growth Charts” out there. While they can be used as a good tool, you must remember that every Yorkie is different. In my experience, growth charts are a very rough guide, and have been accurate for me about 50% of the time.
The best thing a new Yorkie owner can do to predict the weight of their puppy is to triple the puppy’s weight at 8 weeks, or double the weight at 12 weeks. This is a very good way to guesstimate the weight of your Yorkie as an adult. Taking this prediction into consideration with (at a minimum) the weights of the parents and you will have a very good idea about the eventual size of your puppy.
There has been much talk lately about Yorkie weights. In years past, people weren’t asking about adult weights, they were more concerned with the health of their Yorkie. But, there has been quite a trend over the past couple of years as far as size is concerned. A lot of this has to do with these so called teacup Yorkies. To clear the air about that, there is only one Yorkie, and the official standard is not to exceed 7 pounds. There are some breeders who breed for a very small sized Yorkie. The general public has taken to calling these Yorkies teacups, tiny, micro, toy, and on and on. Yorkshire terriers are a toy breed, and there is no distinction in the standard based on sizes or weights. These are terms people have started using to sell their puppies. Though, I have heard owners call their larger Yorkies “teapots,” but have yet to see a breeder advertise a puppy as such.
Please beware of anyone who uses these terms in advertising their puppies. The term “teacup” and related words are expressly prohibited by the YTCA Codes of Ethics. Additionally, it is never a good idea to breed a female Yorkie that is under 5 pounds.