Mixed Breed Puppy Weight Calculator
Estimate how big your mixed breed puppy may get as an adult. Add parent weights for a better-informed estimate, or choose an expected adult size.
Mixed breed puppy growth chart: start with adult size
There is no single weight-by-age chart for every mixed breed. Use the size references below to understand the calculator's starting ranges, then enter your puppy's age, current weight, and parent weight or expected adult size for a personal growth chart in lb or kg.
| Expected adult size | Adult reference range | Approximate maturity |
|---|---|---|
| Toy | 2–12 lb0.9–5.4 kg | Around 9 months |
| Small | 12–25 lb5.4–11.3 kg | Around 11 months |
| Medium | 25–50 lb11.3–22.7 kg | Around 14 months |
| Large | 50–90 lb22.7–40.8 kg | Around 18 months |
| Giant | 90–200 lb40.8–90.7 kg | Around 24 months |
These are broad model references, not a diagnosis or a guaranteed final weight. Parent information can change the range used for an individual estimate. If you cannot choose an adult size and do not know a parent's weight, ask for help assessing likely size before calculating.
How to read your mixed breed growth chart
- Choose Mixed breed and enter age and current weight. Add a known parent's weight or explicitly choose an expected adult size; the calculator will not assume a medium dog.
- After calculating, read the adult weight interval and growth trend together. The curve is an estimate based on the information you entered, not a record of previous weigh-ins.
- Compare measurements taken over time instead of treating one reading as a final answer. Save or copy each result if you want to keep your own record.
Using the calculator for a Bernedoodle, Pomsky, or Labradane
Choose Mixed breed for these mixes. This tool does not have a separate validated growth curve for each mix name. Use the actual parents' weights when known, or explicitly select an expected adult size. A mix name alone does not supply enough information to choose a reliable size reference.
Read how the growth estimates are calculated · More on mixed breed size prediction methods · Browse puppy growth charts by adult size · Back to the main puppy weight calculator
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.