Use this Greater Swiss Mountain Dog puppy weight calculator to predict how big your puppy will get. Greater Swiss Mountain Dogs 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.
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| Age | Weight |
|---|---|
| Birth | 2 to 5 lbs |
| 2 Months | 7 to 14 lbs |
| 3 Months | 13 to 28 lbs |
| 4 Months | 21 to 42 lbs |
| 5 Months | 30 to 56 lbs |
| 6 Months | 38 to 70 lbs |
| 7 Months | 47 to 84 lbs |
| 9 Months | 55 to 98 lbs |
| 10 Months | 64 to 112 lbs |
| 1 Year | 72 to 126 lbs |
| 1.5 Years | 81 to 140 lbs |
| 2 Years | 85 to 140 lbs |
Estimated from typical giant-breed growth curves and the Greater Swiss Mountain Dog'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, Greater Swiss Mountain Dogs carry meaningful bloat risk. They're also prone to hip and elbow dysplasia, and — like other giant breeds — have a shorter average lifespan, often 8-10 years, with elevated cancer risk contributing.
A large-breed puppy formula through the growth period; adults benefit from meals split to help reduce bloat risk.
The short-to-medium double coat sheds moderately and needs regular brushing.
Generally easygoing and trainable, though early socialization and obedience work matter given the breed's eventual giant size.
The largest of the four Swiss Sennenhund breeds, historically used to pull carts and drive livestock in the Swiss Alps.
Calm, confident, and loyal, "Swissies" are gentle with family despite their imposing size.