Fortunately, most of the time your vet can help you resolve your puppy's development issues with no long-term problems. You don't need to panic, but be aware that something may be wrong. If your puppy's weight is tracking below where they should be, take this as a sign you should consider taking them to a veterinarian to check for health problems affecting their growth. If you have a 12-week old puppy, here's approximately how much they should weigh on average: Most pet owners bring their puppy home at around 12 weeks old. Pit Bull Puppy Pictures: Enjoy These Pups' Irresistible Charm.14 Pics of Mini Beagles That Are Just What the “Dogtor” Ordered.12 Great Dane Facts and Photos Celebrating These Majestic Dogs.Large breeds such as Great Danes or Mastiffs will weigh significantly more than small breeds like Chihuahuas or Yorkshire Terriers, even when they're the same age. All the calculations are based on The American Kennel Club’s database of adult dog weights and heights.

The calculator was built by a data scientist to ensure the results will be as accurate as possible, and approved by our team of veterinarians. Your puppy's weight will vary based on their breed, genetics, and age. Our puppy weight calculator determines how big your puppy will be when it becomes an adult dog.