Australian Terrier Puppy Weight Calculator

Calculate the adult weight for your Australian Terrier. Just type your puppy’s current weight and age and see how big your puppy gets.

Australian Terrier Breed Profile

Breed Overview

The Australian Terrier is one of the smallest working terriers, developed in Australia in the 19th century to assist with rodent control, snake hunting, and watchdog duties. A descendant of British terrier breeds like the Cairn and Norwich Terrier, the Australian Terrier is smart, spirited, and affectionate. They thrive as companion dogs and excel in agility and obedience when given consistent training.

As a small-sized breed, the Australian Terrier typically weighs between 14 to 16 pounds as an adult. Due to their compact size, growth tracking is crucial to ensure they remain within a healthy range. Overfeeding or improper diet can quickly lead to obesity or skeletal strain in small breeds. Regular monitoring during the puppy phase helps ensure balanced development and long-term health.

For additional breed details, see the Australian Terrier profile from the American Kennel Club (AKC).

Australian Terrier Growth Chart & Weight Ranges

The following table provides average weight estimates for Australian Terrier puppies as they grow. Growth rates may vary slightly depending on individual genetics and activity level. Males may weigh 1–2 lbs more than females on average.

Age	Average Male Weight	Average Female Weight
4 weeks	1.5 – 2 lbs	1 – 1.8 lbs
8 weeks	3.5 – 4.5 lbs	3 – 4 lbs
3 months	5 – 6.5 lbs	4.5 – 6 lbs
4 months	6.5 – 7.5 lbs	6 – 7 lbs
6 months	8.5 – 10.5 lbs	8 – 10 lbs
9 months	11.5 – 13.5 lbs	10.5 – 12.5 lbs
12 months	14 – 16 lbs	13 – 15 lbs

Most Australian Terriers reach their full adult weight and height by 10–12 months, although some may continue to fill out slightly until 14 months.

How Much Bigger Will My Australian Terrier Puppy Get?

Australian Terrier puppies grow quickly in their first few months:

• By four months, most will have reached approximately 50–60% of their adult weight.
• A practical rule of thumb: Double your puppy’s weight at 16 weeks to estimate their adult size.
• Unlike larger breeds, Australian Terriers typically stop growing by their first birthday, with very minimal changes afterward.

Because of their small frames, rapid weight gain can impact bone development and joint health, making consistent growth monitoring essential.

Australian Terrier Growth Tips

Nutrition

• Feed a high-quality small breed puppy formula from weaning to about 10–12 months.
• Puppies up to 6 months should be fed 3–4 small meals per day.
• From 6 months onward, reduce to 2 meals per day.
• Avoid free-feeding and limit treats to no more than 10% of daily caloric intake.

Choose foods labeled “complete and balanced” by AAFCO and formulated for small breed puppies.

Exercise

• Australian Terrier puppies are energetic but not overly demanding:
  • Provide short walks and indoor play a few times per day.
  • Avoid intense or repetitive jumping for at least 6 months to protect developing joints.
  • Engage their minds with training games and interactive toys to reduce boredom-related behaviors.

Health Watch

Common growth-related concerns in Australian Terriers include:

• Patellar luxation – a knee issue more common in small breeds; maintaining a healthy weight reduces risk.
• Tracheal collapse – avoid heavy collars and excessive leash pulling.
• Hypoglycemia (in very small or underweight pups) – ensure consistent meals and hydration.