Use this Australian Cattle Dog puppy weight calculator to predict how big your puppy will get. Australian Cattle Dogs are a herding breed that typically reaches 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 Cattle 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.
Australian Cattle Dogs are prone to hereditary deafness and progressive blindness, both worth screening for, along with hip dysplasia common to active herding breeds. They're a notably hardy, long-lived breed overall — often living well into their teens with proper care.
A quality diet matched to this breed's genuinely high activity level; no unusual dietary requirements beyond standard portion control.
The short double coat needs minimal grooming beyond brushing during seasonal shedding periods — an easy-care coat overall.
This breed was bred to herd by nipping, and that instinct carries over — early training to redirect mouthiness matters, especially in homes with children. Cattle Dogs are intensely intelligent and need real daily mental and physical work; without it, that drive turns into destructive or difficult behavior. Best suited to an experienced, active owner.
The Australian Cattle Dog was developed in 1800s Australia when rancher Thomas Hall crossed Blue Smooth Highland Collies with dingoes to create a herding dog tough enough for the harsh Outback. Later crosses with Bull Terrier, Dalmatian, and Kelpie refined the breed's working temperament and gave it the distinctive speckled coat — a trait inherited from the Dalmatian, along with the breed's unusual habit of being born white and darkening to full color over the following weeks. The AKC recognized the breed in 1980.
Also known as the Blue Heeler or Queensland Heeler, the ACD was bred to herd cattle over long distances by nipping at their heels — a job requiring real toughness, independence, and stamina, all of which carry through strongly to the breed's temperament today.
