What is the average size of an Australian Shepherd?

What is the average size of an Australian Shepherd?

Despite their small stature, Australian shepherds are built to withstand the rigors of daily life.

In terms of size, they range from 18-23 inches tall and weigh 40 - 60 pounds. It is common knowledge that men are generally taller and bigger than their female counterparts. The average lifespan for Australians is between 10 and 12 years.

The thick, medium-length coat of an Aussie can be straight or somewhat wavy, depending on the breed. Feathers adorn the backs of their legs, and a thick mane wraps around their necks. Red or blue merle coats, as well as white and/or tan patterns, can be found in a variety of breeds. If a dog's tail is longer than four inches, it may be docked to keep it short.

What is the average size of an Australian Shepherd?

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How Tall, How Heavy, and How Big Is the Standard Australian Shepherd?        

In general, males of the Australian Shephard breed grow taller than the female counterparts, with the exception of the short-haired breed.

The AKC says:

Males should expect to reach a height of 20-23 inches, while females can expect to reach a height of 18-21 inches.

Male pups tend to be larger than females in terms of weight, but only if they are compared to dogs of the same body composition.

An animal's BCS, or body condition score, is a way of gauging how physically fit it is.

To put it another way, an overweight female pup may be larger than an underweight guy due to her greater BCS.

An adult male Australian Shepherd can weigh 50-65 pounds, however females only reach a mature weight of 40-55 pounds.

A medium-sized Australian Shepherd may even be referred to as a large-sized dog, depending on the breed.

At full maturity, Aussies will always have some diversity in size, as well as some pups will grow to be significantly bigger or smaller than average.

Exactly When Do Aussie Shepherds Become Full-Size Dogs?

The growth rate of females and males Australian Shepherds decreases substantially after the age of 13 months and eventually plateaus at the age of 16 months.

All of this is presuming, of course, that the Aussie has been properly fed, exercised, and is free of any congenital abnormalities that would impair his or her growth.

A dog's height is usually fixed at 16 months, however Australian Shepherds have the potential for growth outwards, which means they could get fatter!

You should avoid overfeeding your dog and make sure he gets enough activity to avoid putting undue stress on his joints, which could lead to osteoarthritis later in life.

Keep an eye on your Australian Shepherd's weight on a regular basis.

Putting them on a diet is a good idea if they fall within the height limits stated above but are much heavier than the average Aussie.

How quickly do Australians mature?

The majority of an Australian Shepherd puppy's growth occurs in the first 8 to 9 months of life. At 16 months of age, a child's growth slows to a stop.

However, male Aussies puppies will always be larger than the female counterparts at the same age.

At various stages of development, the weight of an Aussie Shepherd dog can be estimated:

Typical height and weight for male Australian Shepherds

A male Aussie Shepherd dog should expect to weigh between 21 to 26 pounds when he is three months old.

Male Australian Shepherds can weigh between 39 to 49 pounds at six months of age.

An adult male Australian Shepherd weighs between 53 and 67 pounds at one year of age.

A typical female Australian Shepherd's height and weight

A female Aussie Shepherd dog will weigh between 14 - 21 pounds at the age of three months.

Australian Shepherd puppies are typically between 26 to 39 pounds at six months of age.

When a female Aussie Shepherd dog is one year old, she will weigh anything from 34 to 53 pounds.

What Affects the Size and Rate of Growth Of An Object?

The rate of growth of an Aussie puppy is influenced by a variety of variables. Some of which are controlled, while some are out of an owners or veterinarians’ control.

The more you know about these things, the more prepared you'll be to ensure a healthy growth rate for your Australian Shepherd puppy.

Genetics Genetics play a significant effect in the rate of growth and eventual size of your dog.

Dogs differ in size because of genetic variety, which is critical to ensuring that all members of a species are unique.

Even though genetics are set in stone and cannot be altered by the owner, they are only one part of the jigsaw.

The other components on this list are critical in allowing a person's genetic potential to be realized.

Some Aussies, like people, will always be larger than others, but you can help your dog grow in a healthy and normal way by making the most of the other elements listed below.


Proper nutrition is highly important for every dog as they grow. They require the power to grow, mostly supplied from protein and carbohydrates, and the all the minerals and vitamins for a healthy immune system.

Because of their high level of activity, Australian Shepherds require a lot of energy, both for growing and for play.

Your puppy will benefit from a well-balanced puppy diet that includes the micronutrients they require.

It's fine for Aussie puppies to eat three to four times a day, but it can be reduced as they become older.

It's important to always read the package of the food you buy for a suggestion on just how much to serve food to the puppy depending on his/her expected mature weight.

To avoid overfeeding, keep in mind that faster growth is not always a result of consuming more food.

Overconsumption of calories will result in a chubby dog with digestive issues.


You've probably heard that overexerting your puppy may hinder his or her growth, but is this really true?

Well, strictly speaking, over-exercising your puppy will not impede his or her growth, but it may harm the growth plates in your Aussie's leg bones, which can lead to bone injury.

Cartilage gradually transforms into bone in your puppy's legs at the ends of long bones like the femur or humerus through a process known as growth.

There is less and less cartilage being converted to bone when growth slows down.

How quickly the growth plates in an Australian Shephard close determines how tall it will grow because of the length of its leg bones.

The aberrant development of these growth plates, which can lead to joint problems in elderly dogs, might be exacerbated by the repetitive impact of running.

However, this does not indicate that you should stop exercising your Aussie dog. For the sake of your puppy's social development, you should let him or her to play or run around freely.

You should wait until your puppy is at least 16 months old before taking it for a long jog.


Your Australian Shepherd's growth can be affected by early neutering.

Your pet will grow taller than they otherwise would because to the delay in closure caused by early neutering.

Osteoarthritis, for example, can develop as a result of this

Fertilization of medium and large-breed dogs like Australian Shepherds should wait till they are older and also have acquired a steady weight. It is OK to neuter smaller dogs as young as 6-8 months old.

Talk to your physician about getting your pets neutered if their weight seems to have leveled out.

After 16 months old, this is frequently the case.

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