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Australian Cattle Dog growth chart
How much should a Australian Cattle Dog puppy weigh? Find the row that matches your puppy's sex and expected adult weight, and read across by age.
Australian Cattle Dog puppy weight chart (lb)
| Adult weight | 2 mo | 3 mo | 4 mo | 5 mo | 6 mo | 8 mo | 10 mo | 12 mo |
|---|---|---|---|---|---|---|---|---|
| Adult, 35 lb | 6.7 | 12 | 16 | 21 | 24 | 29 | 32 | 34 |
| Adult, 50 lb | 9.6 | 17 | 24 | 30 | 35 | 42 | 46 | 48 |
Australian Cattle Dog puppy weight chart (kg)
| Adult weight | 2 mo | 3 mo | 4 mo | 5 mo | 6 mo | 8 mo | 10 mo | 12 mo |
|---|---|---|---|---|---|---|---|---|
| Adult, 16 kg | 3.0 | 5.3 | 7.5 | 9.4 | 11 | 13 | 15 | 15 |
| Adult, 23 kg | 4.3 | 7.5 | 11 | 13 | 16 | 19 | 21 | 22 |
Typical weights by month. Individual puppies often sit 10–15% above or below these numbers. Last reviewed October 7, 2026.
Australian Cattle Dogs are also called Blue Heelers or Red Heelers, depending on coat color. Size is the same.
How big does a Australian Cattle Dog get?
According to the American Kennel Club's breed profile for the Australian Cattle Dog, adults weigh: male & female 35–50 lb. Life expectancy is 12–16 years.
| Weight | Height | |
|---|---|---|
| Male & female | 35–50 lb | 18–20 in (males), 17–19 in (females) |
When does a Australian Cattle Dog stop growing?
Australian Cattle Dogs grow like other medium-sized dogs: they are close to adult weight at around 13 months. At 6 months a typical Australian Cattle Dog puppy has reached about 70% of its adult weight.
To estimate your own puppy's adult weight from its current weight and age, use the puppy weight calculator and choose "Medium" as the expected adult size.
How the chart is made
The adult weights come from the AKC breed profile. The weight at each month is estimated with our medium-breed growth curve, which gives the share of adult weight a typical puppy of that size reaches at each age. The curves are simplified from published research on dog growth, including the growth standard charts by Salt and colleagues (PLOS ONE, 2017).
If your puppy is well below or above the chart, stops gaining weight, or looks very thin or round, ask your vet to check its body condition.
Questions people ask
How much should a 3-month-old Australian Cattle Dog weigh?
Typically about 12–17 lb, depending on sex and how big the dog will be as an adult.
How much should a 6-month-old Australian Cattle Dog weigh?
Typically about 24–35 lb, roughly 70% of adult weight.
When is a Australian Cattle Dog full grown?
Most Australian Cattle Dogs are close to their adult weight at around 13 months, though many keep filling out with muscle for a while after that.
How big will my Australian Cattle Dog get?
The AKC lists adult weights of male & female 35–50 lb. Your puppy's parents are a good guide to where in that range it will end up.