Hi,
This is from the FAQ page of yorkietalk.com:
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How much will my Yorkie pup weigh as an adult?
* You can get a rough idea of your puppy’s eventual adult height and weight by doubling the puppy’s height and weight at 13 weeks of age. Also knowing the weight of your puppy’s parents can give you an idea too. There normally are no guarantees on how much your puppy will weigh when he/she is an adult. Some breeder’s might put a guarantee for weight on their contract, but seldom do you find such a guarantee. Genetics is almost impossible to determine.
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If you look on the site, you can also find an age/weight chart that is more accurate, but considering the size of your puppy at 18 weeks, I doubt he'll ever get bigger than 4 pounds. If I can find the age/weight chart info, I'll post it here. |