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Saint Bernard Growth Chart
Saint Bernards are famously massive, gentle Alpine dogs. Adults typically weigh 120–180 lb, with males heavier than females. Most reach adult weight around 24 months.
View weight chart (lb & kg)Calculate Your Saint Bernard Puppy's Adult Weight
Enter your Saint Bernard puppy's age and current weight for an estimated adult weight range.
Saint Bernard weight by age
Typical male and female puppy weight ranges by age, available in lb and kg. Individual puppies may vary.
Most Saint Bernard puppies approach adult weight around 24 months, although individuals may finish earlier or later.
These estimated ranges combine the breed's adult weights with a size-based growth curve. They are not measured breed-specific percentiles or health targets. Month labels are rounded approximations; use the week values for each row. How these weight ranges are calculated
Saint Bernard Growth Stages
Understanding the typical growth stages helps you know what to expect as your Saint Bernard puppy grows.
Neonatal
0–2 weeksPuppies are born with eyes and ears closed, relying entirely on their mother. Rapid weight gain occurs during this period.
Socialization
3–12 weeksEyes and ears open. Puppies begin to explore, play, and learn social behaviors. This is a critical period for development.
Juvenile
3–8 monthsRapid growth continues. Puppies become more independent, start teething, and develop coordination.
Adolescent
8–18 monthsGrowth rate begins to slow. Puppies reach sexual maturity and may test boundaries. Muscle mass develops.
Young Adult
18–24 monthsGrowth is nearly complete. Your puppy is filling out and approaching adult proportions.
Adult
24+ monthsYour puppy has reached their full adult size. Weight should remain relatively stable with proper nutrition.
Saint Bernard FAQ
How much will my Saint Bernard puppy weigh as an adult?
Most adult Saint Bernards typically weigh between 120 and 180 lb. Males often reach 140–180 lb, while females usually finish at 120–140 lb.
At what age is a Saint Bernard fully grown?
Saint Bernards usually keep growing until about 24 months. They gain astonishingly fast in the first year, which is exactly why growth must stay controlled.
How accurate is a Saint Bernard puppy weight chart?
Charts reflect typical trends, not guarantees. Individual puppies vary widely. With growth this rapid, consistent weigh-ins matter more than any single reading.
Do male and female Saint Bernards grow differently?
Males are markedly larger, often 40 lb heavier than females, with much heavier bone.
How much should I feed my Saint Bernard puppy?
Feed a giant-breed puppy formula in measured meals. Never try to maximize growth — steady and slow protects joints and heart. Your vet should review the curve regularly.