When Is A Cocker Spaniel Fully Grown – You Need To Know

People typically use Cocker Spaniels for hunting game. People often consider them one of the best family dogs around because they are lively and playful. They are also popular for their distinctive appearance – the tail of a Cocker Spaniel is usually long and wagged constantly. Many people are curious about the age at which a Cocker Spaniel puppy becomes fully grown and whether they need to be concerned about their dog’s weight.

In this blog post, we will answer these questions and provide a few more of importance for those looking to buy a puppy. We will also provide height and weight charts for puppies and adult Cockers and advice on how frequently to weigh your dog and how often you should exercise them.

When Is A Cocker Spaniel Fully Grown


When Is A Cocker Spaniel Fully Grown? With Age And Size Examples)

When Is A Cocker Spaniel Fully Grown

Like humans, all Cockers will develop at an individual rate. However, most Cockers Spaniels will reach a full-grown height between 9 – 12 months. They will continue to grow in muscularity until they’re 2 years old. At that point, their growth rate begins to slow down. A Cocker Spaniel is a dog of medium size, with males usually weighing between 25 and 30 pounds and females weighing between 20 and 30 pounds.

How Tall Is A Fully Grown Cocker

How Tall Is A Fully Grown Cocker

As I said, all Cockers are different and won’t be the same height when fully grown. All we can do is go off the averages, as each dog’s measurements will come down to its gene pool. Here are the average heights for various Cockers based on their parent’s size:

Miniature Cocker Spaniels – 24 inches

English Cocker Spaniels – 25 inches

Cocker Spaniel – 26 inches

Poodle – 28 inches

Dalmatian – 29 inches

Cocker spaniels are typically between 21-24 in, English cocker spaniels are 25-27 in, and Dalmatians range from 28-32 in.

What Age Will Cockers Reach Full Height?

What Age Will Cockers Reach Full Height

Both male and female Cocker Spaniels will reach full-grown height somewhere between 9 and 12 months old. Although they will continue to develop and gain muscular/physical maturity and weight, their Average Weight at 1 Year is not expected to exceed 28 pounds, much less 36 or so. However, there is no standard height for cockers – some will be taller than others. You should breed your dog correctly to ensure it grows healthily.

What Age Will Cockers Reach Full Weight?

What Age Will Cockers Reach Full Weight

Cocker Spaniels will reach full physical height by the time they are 12 months old. But they will continue to develop and fill out for a few more months. Cocker Spaniels usually weigh between 10 and 15 pounds at maturity. But some may reach as much as 20 or 25 pounds. The heaviest cockers typically measure about 18 inches from the tip of their nose to the base of their tail.

Some factors influencing a dog’s weight include sex, breed, nutrition. Exercise level, and environmental conditioning (such as whether the dog spends time indoors or outdoors). However, there is no definitive answer to this question. Every dog is unique and will develop at a different pace based on his genetic makeup and environment.

What Weight Is A Fully Grown Cocker Spaniel?

What Weight Is A Fully Grown Cocker Spaniel


A cocker spaniel fully grown will weigh between 12 and 18 pounds, with a range of 12 to 30. At 8 to 10 years of age, cocker spaniels will weigh between 24 and 30 pounds. At around 12 to 18 months, the cocker spaniel grows steadily and will reach full physical maturity by about 3 years of age.

Cockers spaniels generally reach their full growth potential at around 12 to 18 months but can continue to grow until about 2 years. After getting their physical peak, cocker spaniels typically maintain a healthy weight throughout their lifespan. Thus, owners must monitor their dog’s weight regularly and ensure they eat a healthy diet.

What Weight Is A Fully Grown Cocker Spaniel?

What Weight Is A Fully Grown Cocker Spaniel

It is essential to know when a Cocker Spaniel is fully grown when growing them. A fully grown Cocker Spaniel weighs between 12 and 18 pounds and measures between 18 and 24 inches at the shoulder. In terms of height, a fully grown Cocker Spaniel will typically reach their total growth by two or three years.

Exercise Is Important

Cocker Spaniels reach their total growth between one and two years of age. At this stage, the puppy will be about 24 to 26 inches long and weigh between 25 and 50 pounds, depending on its breed.

A Cocker Spaniel puppy needs regular exercise to stay healthy and grow. And owners need to provide it with enough food and water to support its growth. Besides training, providing a Cocker Spaniel with high-quality food is vital in its development. Only by giving a good puppy nutrition early can you ensure that it stays healthy and grows into a strong and well-behaved dog over time.

Regularly Weigh Your Cocker

Regularly Weigh Your Cocker

It is essential to know when cocker spaniels are fully grown. Generally speaking, cocker spaniels reach their total growth and mature size around 12 to 18 months old. However, each dog is different, and some may get their full size at a younger age. As Cocker spaniels age, it’s essential to weigh them regularly and watch for any weight changes. This way, you can ensure that you provide the best care for them as they grow into adulthood.

It’s also a good idea to periodically check weight charts or breed standards to see how your cocker spaniel grows and develops as they age. By keeping an eye on their weight as they age, you can ensure that you provide them with the optimal food and health care level as they age.

Cockers’ Average Weight From Puppy To Adult

Cocker spaniels can average around 10 to 20 pounds when fully grown, making them an ideal breed for dogs and owners with different size requirements. They typically take about 6 months to fully reach their adult weight, so you must be patient while your cocker spaniel grows into their new shape and stature.

Cockers are popular for being a fast-growing breed, so it is essential to provide them with a nutritious diet and plenty of exercises to help them stay healthy and energetic. Several factors, such as genetics, training, and diet, can affect the size and growth of cocker spaniels. Overall, cocker spaniels are a loyal and loving breed that makes good companions for people of all ages.

Looking To Buy A Cocker Spaniel Puppy?

Looking To Buy A Cocker Spaniel Puppy

When buying a Cocker Spaniel puppy, you must understand that they usually reach full growth between 12 and 16 months old. The average height and weight of a Cocker Spaniel at this age is between 18 and 25 inches tall and 55 to 65 pounds. Cocker Spaniels can live up to 10 years in normal health but may live as long as 12 or 13 years in good condition. So when deciding when is the right time to get a puppy, make sure to factor in their growth spurt and overall lifespan.


A Cocker Spaniel is a lively and spirited dog that can significantly add to the family. However, like all dogs, Cocker Spaniels will grow and change over time. While some changes are gradual and easy to notice, others may be more subtle and take longer to manifest. If you’re looking for a breed full of energy and striking looks, look no further than the cocker spaniel.

With their small stature, these dogs are perfect for apartment life and great for first-time owners. They’re usually very playful and enjoy running around with you. Their small size makes them easy to carry around, too. You can expect your cocker spaniel to reach between 11 and 14 inches in height and weigh between 12 and 35 pounds when fully grown. While exercise is essential for this breed, being vigilant of their food intake is also paramount.

Frequently Asked Questions

1. How Big Will My Cocker Spaniel Get?

As a cocker spaniel grows, it typically reaches a height between 18 and 24 inches when fully inflated. These dogs are considered mature dogs when they get 5 years of age and can live up to 10-12 years when treated well.

2. At What Age Does A Cocker Spaniel Calm Down?

A cocker spaniel will reach total growth and maturity at 2 years of age. Afterward, they may become more vocal and playful as they enter their final year of life. However, some cockers do not fully grow until they are 3 years old.

3. How Big Is A 6-Month-Old Cocker Spaniel?

At six months old, a cocker spaniel’s body will reach its full growth potential and typically be around 18-24 inches in height and weight.

4. What Age Do Cocker Spaniels Get Fluffy?

The average cocker spaniel reaches full maturity (six months old) and weighs around 50 pounds. At this age, cocker spaniels typically have a height of about 18 inches and breed well.

5. Is It Okay To Have An Older Dog In Your Family After They Have Reached The Age Of Total Growth?

As long as your dog has reached the age of total growth and is in good health, it is generally okay to have an older dog in your family. Make sure to consult with a veterinarian before adopting or buying an older dog, though, as they may have more medical issues that need to be addressed. Older dogs may also require more exercise and stimulation than puppies, so ensure you provide them with plenty of playtimes and walks daily.

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