Mixed Breed Puppy Weight Calculator
Estimate how big your mixed breed puppy may get as an adult. Enter parent weights for better accuracy, or choose an expected size category.
Enter your puppy's details to see an adult weight range, growth chart, and confidence level.
Frequently asked questions
How can I estimate my mixed breed puppy's adult weight?
Enter your puppy's current age and weight, then select "Mixed breed." If you know a parent's weight, add it for a better-informed estimate. Otherwise, choose an expected size category (Toy, Small, Medium, Large, or Giant).
Are mixed breed weight predictions less accurate?
Mixed breed estimates have wider ranges because ancestry is less predictable than a known breed. Parent weights can narrow the reference range, but the result remains an estimate.
What if I don't know my mixed breed puppy's parents?
Select an expected adult size category based on your puppy's current size and what your vet estimates. The calculator will use size-appropriate growth curves.
Do mixed breed puppies grow differently than purebreds?
Growth patterns are similar within the same size category. A mixed breed medium-sized puppy follows a similar curve to a purebred medium-sized puppy. The main difference is less certainty about the final adult size.