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How Big Does a Cavapoo Get When Fully Grown as an Adult?

How Big Does a Cavapoo Get When Fully Grown as an Adult?

If you are interested in potentially adopting a Cavapoo, knowing what to expect regarding its size will be necessary. So, how big does a Cavapoo get when fully grown as an adult?

After all, the size of a dog can then determine how much space they need to live. You must know in advance if you have adequate space to prevent problems. So, what are the critical stats for a Cavapoo?

That is what we are about to explore. When doing so, we will look at their height and general weight range for this breed.

Also, we will explain why there can be such a difference within the one breed to help you better understand what to expect—with that said, what should you know about the size of a Cavapoo?

A Cavapoo is a Small Dog

The first thing to know is that a Cavapoo is viewed as a small dog. They do not require a lot of space, and it’s easy to pick them up and give them a cuddle whenever you want.

The fact they love cuddles is just a bonus for you.

But what do we mean by this being a small dog? Well, the Cavapoo does not weigh much, and it also won’t grow that tall, and it’s all thanks to the Cavalier Spaniel in their genes.

Oh, and the fact it’s matched with a Mini Poodle will also play a role.

The Average Height of the Cavapoo

Regarding their height, the Cavapoo can vary from anywhere between 9 and 14 inches.

That is quite a difference, and while you may get the occasional Cavapoo falling outside of either end of this spectrum, it’s highly unusual.

Of course, we are talking about the adult Cavapoo. A puppy is extremely small, and you do need to take care with a Cavapoo puppy. They can be pretty fragile, so pay attention if you have small children around them.

The Average Weight of the Cavapoo


It will be no surprise to learn that the average weight of the Cavapoo is not too high. An adult Cavapoo will weigh somewhere in the region of 9 to 25 pounds.

Once again, this is quite a wide range of weights, but it does help you determine how much food you need to give your Cavapoo.

It’s essential to keep them within this range for their health. Failing to do so can put undue pressure on their body, which can become problematic.

The Importance of Keeping Them in Their Weight Ranges

It is vitally important you keep your Cavapoo within the set weight range. Failing to do so will increase the chances of your Cavapoo picking up various health issues, and we want to avoid that.

But don’t just sit there and think your Cavapoo can quickly reach the 25 pounds limit and be happy.

Remember, there are different sizes of Cavapoo dogs out there, and some will be naturally smaller than others. Please make sure they are in the correct weight range for their size. 

For example, if your Cavapoo is smaller, then keeping them in the lower half of the weight range makes sense. Anything else could put pressure on joints and their body in general.

A Cavapoo can be prone to a heart issue, but it’s hip dysplasia you must look out for in their body. Any excess weight can put pressure on their hips, which will be problematic.


Feeding both the right food, along with the right amount, is essential. A Cavapoo puppy should be fed up to four times daily, but an adult can be fed once or twice.

In general, and this is not an exact science, people recommend giving your dog around 20g of food per 1kg of weight. That may not sound like much, and it is just a general recommendation, but it is set in some science.

However, we recommend that you focus on the measurements that appear on the dry food you purchase.

They should contain information that will work in accordance to the size of your dog. Please pay close attention as it’s easy to go over, and then you wonder why your Cavapoo is gaining weight.

But Why the Wide Ranges?

But you may be wondering how the Cavapoo has such a wide range regarding their height and weight. Well, there’s a good reason for that.

The reason is simply that you have two different types of Cavapoo. One is a toy Cavapoo, and the other is a Mini Cavapoo.

It makes sense that the toy version will be more to the lower end of those ranges, while the Mini is more to the top end.

This will be determined by the parents, so if buying a puppy, then you may get an idea of what to expect from your puppy. However, that is no guarantee.

The Difference Between Male and Female

It’s worth noting that there is also a very clear difference between both males and females when it comes to your Cavapoo.

Generally, a male will be more to the upper end of the size and weight ranges while a female is generally smaller. Of course, you can get some exceptions to this, but it is a general rule of thumb.

But here is an important point to remember. We are not talking about too big a difference between the sexes when it comes to their size. So you don’t have to stress or worry too much about this. 

But it Gets More Complicated

So far, things have been quite straightforward when it comes to talking about how big an adult Cavapoo is going to be. But it’s now time to make things slightly more complicated.

You see, you have different types when it comes to the Cavapoo. Also, we are not talking about the difference between toy and mini either.

Instead, we are referring to F1, Fb, and F2b. If you are completely lost in what we mean, you won’t be for much longer.

In short, an F1 means your puppy has a 50/50 split between a Poodle and a Cavalier King Charles Spaniel. That means you have the same amount of genes from both sides in your puppy.

But That’s Not the Only Version

If you have an F1b, you have a Cavapoo as one parent and usually a Poodle as the other parent.

That then leads to the genetic split being in the region of 25% Cavalier and 75% Poodle if the Poodle is the other parent.

But that’s not all.

An F2b Cavapoo consists of the puppy having two F1b parents. That way it still ends up with a 50/50 split from the genetic side.

So how does that change their size? Or the potential to know what to expect? 

If the split is 50/50, then it’s easy to look at the size of the parents and know the approximate size of your puppy. But if it’s an F1b or even an F2b, then you have an issue.

The problem with those two options is not knowing the size of the original breeds that created the Cavapoo.

You could have had a Cavalier and Poodle at the upper end of their size ranges, or the opposite could be true.

At those times, you are unable to predict. However, we are still not talking about a Cavapoo being a large dog, so it’s less of an issue than people make out.

Frequently Asked Questions

How Big Will a Cavapoo Get?

The Cavapoo is considered a smaller-sized dog. Their height can vary from 9 to 14 inches at the shoulder.

A full-grown Cavapoo weighs anywhere between 9 and 25 pounds. It is important to keep your Cavapoo within the set weight range to avoid any health issues. 

Do Cavapoos Bark A Lot?

The Cavapoo is not known to be a loud dog. They are friendly and docile dogs that are calm most of the time unless something is troubling them.

Some of the things that can lead to their excessive barking are boredom, pain, fear, and separation anxiety.

Generally, a well-socialized Cavapoo will bark less often. Also, it is important to note that every dog is unique, so some may be more vocal than others.

Are Cavapoos High Maintenance Dogs?

Cavapoos are recognized as high-maintenance dogs. They need regular grooming to maintain their quality and healthy coats.

You must brush their coats at least five times a week to keep them at their best. Regular trimming and bathing them once in two months can help overcome odor.

What Is the Lifespan of a Cavapoo?

Generally, smaller-sized dogs tend to live longer than larger ones. Since mixed breed produces smaller dogs, you can expect them to have a longer lifespan.

They have an average lifespan of 10 to 14 years. However, like other dog breeds, your Cavapoo will need good care and nutrition to live a long and happy life.

Is a Cavapoo Bigger Than a Shih Tzu?

Both the Cavapoo and the Shih Tzu fall on the small side. However, there are a few differences between the average Cavapoo and the average Shih Tzu.

Cavapoos are slightly larger in both weight and height. However, all this depends on the individual dog. 

Are Cavapoos Good For First-Time Owners?

If you plan to add a dog to your family for the first time, the Cavapoo is one of the breeds to consider. These adorable dogs are well-rounded pets with many good traits.

Their eagerness to please and sweet nature make them a perfect choice for individuals with limited experience.

In addition, their low-shedding coats and hypoallergenic quality makes them suitable for individuals who suffer from dog allergies.

What Are Cavapoos Problems?

Since the Cavapoo is a hybrid breed created by crossing a Cavalier King Charles Spaniel with a Poodle, you can expect it to have fewer health problems.

The common health issues are hip dysplasia, luxating patellas, glaucoma, progressive retinal atrophy, and epilepsy.

Are Cavapoos Hard to Train?

The Cavapoos is an intelligent dog that is easy to train. They are eager to please, making training much easier.

To make it more effective, you should start to socialize and train them from an early age. Also, positive reinforcement will help to make the training a success.

Can Cavapoos Be Left Alone?

Cavapoos are affectionate dogs that were bred to be constant companions. Therefore, they should never be left alone at home.

Leaving them alone can lead to separation anxiety and destructive behaviors, such as chewing and excessive barking.

Overall Conclusion

So as you can see, the Cavapoo does not grow to any great height or weight, even as an adult. It does mean they can be the perfect solution for anyone looking to own a small dog. 

While their size can vary slightly, it’s not over such a vast range that you are discussing some drastic differences with your dog.

As we described, it can depend on your dog’s genes, so do spend a bit of time checking out their background. Doing so will give you an inkling of what your dog should be like when they become an adult.

Aside from their size, the Cavapoo is a beautiful breed of dog. They are easy to care for, have low exercise requirements, and will want to spend time cuddling you and spending time in your presence.

They are the perfect family dog, and the fact you can easily care for them even in an apartment is just a bonus.

So, if you want a dog that is better for people with allergies and also won’t take up too much space, then this could very well be the perfect dog for you.

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