Use this Saint Bernard puppy weight calculator to predict how big your puppy will get. Saint Bernards are a giant working breed that keeps growing until around 18-24 months.
Enter your puppy's current weight and age to predict their adult size
Estimates based on breed growth curves. Individual dogs vary with genetics and nutrition — check with your vet for a personalized read.
Slows fast eaters, can aid digestion, holds 4 cups dry or wet food — sized for giant breeds.
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
| Age | Weight |
|---|---|
| Birth | 2 to 6 lbs |
| 2 Months | 10 to 18 lbs |
| 3 Months | 18 to 36 lbs |
| 4 Months | 30 to 54 lbs |
| 5 Months | 42 to 72 lbs |
| 6 Months | 54 to 90 lbs |
| 7 Months | 66 to 108 lbs |
| 9 Months | 78 to 126 lbs |
| 10 Months | 90 to 144 lbs |
| 1 Year | 102 to 162 lbs |
| 1.5 Years | 114 to 180 lbs |
| 2 Years | 120 to 180 lbs |
Estimated from typical giant-breed growth curves and the Saint Bernard's adult weight range. Individual puppies vary — use the calculator above for a prediction based on your puppy's actual current weight.
New breed data, growth tips, and puppy-parenting insights, plus our free printable puppy growth tracker.
As a giant, deep-chested breed, Saint Bernards carry meaningful bloat risk. They're also prone to hip and elbow dysplasia, entropion (an eyelid condition), and heart conditions — and like most giant breeds, have a shorter average lifespan, often 8-10 years.
A large-breed puppy formula through the growth period; adults benefit from meals split to help reduce bloat risk.
Both short and long coat varieties shed heavily and need regular brushing.
Gentle and eager to please, though early obedience training matters given the breed's eventual giant size.
A Swiss Alpine breed famous for mountain rescue work, historically used by monks to locate and aid travelers lost in snowstorms.
Gentle and patient despite its massive size, the Saint Bernard is a calm, affectionate family companion.
