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How Big Does a Cavapoo Get When Fully Grown As Adults?

How Big Does a Cavapoo Get When Fully Grown As Adults?

If you are interested in potentially adopting a Cavapoo, then knowing what to expect when it comes to their size is going to be important. So, how big does a Cavapoo get when fully grown as adults?

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

That is what we are about to explore. When doing so, we will not only look at their height but also the general weight range for this breed.

Also, we will explain why there can be such a difference within the one breed to help you gain a better understanding of 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 being a small dog. They do not require a lot of space, and it’s certainly easy enough to pick them up and give them a cuddle whenever you want.

The fact they love cuddles is just an added 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 clearly play a role.

The Average Height of the Cavapoo

When it comes to their height, then 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 in a sense, 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 going to be too high. In fact, an adult Cavapoo is going to 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 important to keep them within this range for the sake of their health. Failing to do so can put undue pressure on their body, and that 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 easily go up to 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. Make sure they are in the correct weight range for their size. 

For example, if your Cavapoo is smaller in stature, 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 for their body, it’s hip dysplasia you need to be looking out for. Any excess weight can put real pressure on their hips, and that will be problematic in the future.


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

In general, and this is not an exact science, people do 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, what we do recommend is 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. Pay close attention as it’s easy to go over, and then you wonder why your Cavapoo is picking up weight.

But Why the Wide Ranges?

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

The reason is simply because you have two different types of Cavapoo. One is a toy Cavapoo, and 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 absolute guarantee.

The Difference Between Male and Female

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

In general, a male will be more to the upper end of the size and weight ranges while the female is generally smaller. Of course, you can get some exceptions to all of 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 just ever so slightly more complicated.

You see, when it comes to the Cavapoo, then you have different types. 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 as to what we mean, then 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 exact same amount of genes from both sides in your puppy.

But That’s Not the Only Version

If you have an F1b, then it means 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 of things.

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 that were both 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.

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 huge range that you are talking about some drastic differences with your dog.

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

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

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