Use this Australian Kelpie puppy weight calculator to predict how big your puppy will get. Australian Kelpies are a herding breed that typically reach full size by around 12-18 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.

A practical pick for medium-sized breeds.
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| Age | Weight |
|---|---|
| Birth | 1 to 2 lbs |
| 2 Months | 5 to 10 lbs |
| 3 Months | 9 to 15 lbs |
| 4 Months | 12 to 20 lbs |
| 5 Months | 16 to 25 lbs |
| 6 Months | 19 to 30 lbs |
| 7 Months | 23 to 35 lbs |
| 9 Months | 26 to 40 lbs |
| 10 Months | 30 to 45 lbs |
| 1 Year | 33 to 49 lbs |
| 1.5 Years | 35 to 50 lbs |
| 2 Years | 35 to 50 lbs |
Estimated from typical medium-breed growth curves and the Australian Kelpie'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.
Generally healthy and hardy; hip dysplasia can occur given the demands of the breed's working role.
A quality diet matched to this breed's exceptionally high, sustained energy level.
The short double coat needs minimal brushing.
This is an intensely driven working breed — without a genuine job or serious daily exercise and mental engagement, Kelpies become anxious or destructive. Best suited to active, experienced owners.
Developed in 19th-century Australia from British collie-type dogs, bred to muster and drove sheep and cattle across vast distances with little or no direct guidance — a genuinely independent working intelligence unusual even among herding breeds.
Lithe, tireless, and extremely alert, the Kelpie has been exported worldwide as a working stock dog and remains, at heart, a serious working breed rather than a casual companion.