Giant breed

Bernese Mountain Dog Growth Chart

Male adult weight80–115 lb

Female adult weight70–95 lb

Bernese Mountain Dogs are large, heavy-boned working dogs from alpine regions. They mature slowly and may gain weight into the second year. Males are typically heavier than females; parent sizes improve prediction confidence.

Expected Bernese Mountain Dog puppy weight at key ages (lb)
Age	Expected weight (low–high)
8 weeks	7.4–27.1 lb
12 weeks	10.9–32.9 lb
16 weeks	14.1–38.1 lb
20 weeks	17–42.9 lb
24 weeks	19.8–47.5 lb
32 weeks	25–56 lb
40 weeks	29.9–64.1 lb
1 year	36.8–75.4 lb
1y 26w	50.6–98.1 lb
2 years	65.5–115 lb

Bernese Mountain Dog Growth Stages

Understanding the typical growth stages helps you know what to expect as your Bernese Mountain Dog puppy grows.

Neonatal

0–2 weeks

Puppies are born with eyes and ears closed, relying entirely on their mother. Rapid weight gain occurs during this period.

Socialization

3–12 weeks

Eyes and ears open. Puppies begin to explore, play, and learn social behaviors. This is a critical period for development.

Juvenile

3–8 months

Rapid growth continues. Puppies become more independent, start teething, and develop coordination.

Adolescent

8–18 months

Growth rate begins to slow. Puppies reach sexual maturity and may test boundaries. Muscle mass develops.

Young Adult

18–24 months

Growth is nearly complete. Your puppy is filling out and approaching adult proportions.

Adult

24+ months

Your puppy has reached their full adult size. Weight should remain relatively stable with proper nutrition.

Enter your puppy's details to see the estimate

How much will my Bernese Mountain Dog puppy weigh as an adult?

Most adult Bernese Mountain Dogs typically weigh between 70 and 115 lb as a giant breed. Males often fall in the 80–115 lb range, while females may finish lighter at 70–95 lb. Your puppy's current age and weight help estimate where they may land within that spread.

At what age is a Bernese Mountain Dog fully grown?

Berners gain weight into the second year as heavy alpine bone develops. Overall, Bernese Mountain Dogs—classified as giant—usually mature between 18 and 24 months. Puppies may look nearly full-sized before muscle and bone fully settle, which is normal and expected for this breed.

How accurate is a Bernese Mountain Dog puppy weight chart?

Bernese Mountain Dog weight charts reflect breed averages, not guarantees. Variation from heavy alpine bone is common, and slow maturation means charts shift through the second year. Treat estimates as ranges and track your puppy's trend over several weeks for better context.