How Big Will My Chihuahua Puppy Get Calculator. To calculate their adult weight, there are two methods you can use: By the end of three months, your chihuahua puppy will reach about 30% of his adult weight.

Holding claim to the world's smallest dog breed, chihuahuas typically weigh between two and six pounds when fully grown.of course, that's a pretty wide range, leaving many owners pondering the following question: Well, 52 is the number of weeks in a year. How big, or small, will by chihuahua puppy get?
2 (the number of solid pounds of the puppy) x 16 (the number of ounces in a pound) + 1 (the number obtained from the.1 in the pup's weight) directions for using the chihuahua growth chart.
For example, a 20lb puppy at 14 weeks is predicted to weigh 20 + 20 + 10, which adds up to 50lb. Our puppy weight calculator estimates the adult weight of your pup based on his current age, weight, and breed. If you want to know how big your puppy will grow to be, his paws may give you a clue, but this isn't exactly a reliable way to tell. For medium to large breeds, the dog will eventually be around 2.5 times its weight when it is 14 weeks old.