Use this Belgian Sheepdog puppy weight calculator to predict how big your puppy will get. Belgian Sheepdogs are a herding breed that typically reach full size by 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.

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| Age | Weight |
|---|---|
| Birth | 1 to 3 lbs |
| 2 Months | 5 to 11 lbs |
| 3 Months | 9 to 19 lbs |
| 4 Months | 14 to 26 lbs |
| 5 Months | 18 to 34 lbs |
| 6 Months | 23 to 41 lbs |
| 7 Months | 27 to 49 lbs |
| 9 Months | 31 to 56 lbs |
| 10 Months | 36 to 64 lbs |
| 1 Year | 41 to 71 lbs |
| 1.5 Years | 44 to 75 lbs |
| 2 Years | 45 to 75 lbs |
Estimated from typical large-breed growth curves and the Belgian Sheepdog'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.
Prone to hip and elbow dysplasia, common in active herding breeds; otherwise generally healthy with a 12-14 year lifespan.
A quality diet matched to this breed's high working-dog energy level.
The long black coat needs frequent brushing to remove dead hair, especially during shedding periods.
Belgian Sheepdogs are sensitive to harsh correction and need positive, consistent training from an experienced handler — genuinely happiest with a job and close daily involvement in family life; not a breed suited to isolation.
One of four Belgian Shepherd varieties (alongside the Malinois, Tervuren, and Laekenois), distinguished by its solid black, long coat — all four share common Belgian herding-dog ancestry, formally split into separate AKC breeds in 1959. Also known as the Groenendael for the Belgian estate where the black-coated type was refined.
Highly trainable and intensely devoted to their people, Belgian Sheepdogs served as messenger and Red Cross dogs in both World Wars and remain active today in police work, search and rescue, and service roles.