Double the 12 week weight (aprox. of course). If a pup is less than 12 weeks old, guesstimate. I would say around 3lbs at 12 weeks would probably get you less than 7lbs full grown. Make sure to look at the parents!
What do you want the pup for? Breeding? Showing? Just a pet?
IMO, I wouldn't pay more than $500 for a pet. And I wouldn't pay more than $2000 for a breeding/show quality dog. Good luck! I want to hear all about your experience
