How big do cavapoos get?

When researching which breed of dog is right for you, size is an important factor to consider. A dog’s size typically correlates with things like; how much space and exercise a dog needs, how much food it will eat, etc. Therefore, it’s vital to choose a dog of a size that suits your home, lifestyle and budget.

The cavapoo is a small to medium-sized dog. When fully grown, the cavapoo’s height (measured from paw to shoulder) ranges from 12 to 15 inches (30 to 38cm), and weight can range from 11 to 24lbs (5 to 11kg). 

Male vs female cavapoo size

As is typically the case in dogs, males may grow slightly bigger and heavier than females. However, the difference in size and weight of male versus female cavapoos is negligible.

Cavapoo size vs other breeds

To help envisage the size of a cavapoo, it can be useful to think of a cavapoo relative to other well-known dog breeds. For example, a cavapoo is half the height and less than half the weight of a labrador. The image above (which is close to scale) provides context for the cavapoo’s height versus some other well-known breeds. We note that the cavapoo is smaller than a German Shepherd but larger than a Chihuahua.

Why do cavapoos range in size?

The cavapoo is a crossbreed: the result of breeding a Cavalier with a Poodle. Whilst the Cavalier’s size tends to be quite consistent at 12 to 13 inches in height, we know that Poodles, in contrast, can range greatly in size across the Toy, Miniature, and Standard Poodle breeds (10, 13 and 15 inches tall, respectively). Whilst the cavapoo is typically bred from a Miniature Poodle mating with a Cavalier, it’s possible that a male Toy Poodle could be used, and this would result in a much smaller cavapoo.

It’s worth noting that we are speaking in pedigree breed terms here. There are, of course, lots of non-pedigree / pedigree mix poodle dogs out from which your cavapoo may have been bred. This is why cavapoos range in size quite a bit.

If you are purchasing a cavapoo puppy, it is good general advice to ask to see both parents. This should give you a better idea for how big your puppy will get. It’s worth noting that even puppies from the same litter will differ a little in size and there is often a runt of the litter who will be smaller than the rest.

2 cavapoo dogs
Two fully-grown cavapoos

At what age will my cavapoo be fully grown?

By 10 months of age, your cavapoo will be fully grown, typically growing to around 13 inches in height from paw to shoulder. It is remarkable how fast they grow from 8 weeks, when they pretty much fit in one hand (weighing around 5lbs), to 10 months when you will definitely need both arms to pick them up!

I have noticed that many owners get anxious about whether they are feeding their puppy enough and question whether their pup is underweight for its age. If in doubt, definitely consult with your vet. Otherwise, providing you are paying close attention to the feeding guidelines (as outlined on your dog food packaging) and providing your puppy is eating it all each day then you shouldn’t worry.

From left to right, adult and puppy cavapoo

Cavapoo vs. Cockapoo size

Cavapoos are often compared to Cockapoos as the two breeds look similar physically. Note, however, that the Cockapoo tends to be slightly larger in size, giving to the fact that the Cocker Spaniel (from which the Cockapoo takes a parent) is larger than the Cavalier Spaniel from which a Cavapoo is bred. If of interest, I wrote about Cavapoos vs. Cavapoos, and the differences between the two breeds.


Cavapoos are on the smaller end of the scale when it comes to dog breeds, at around half the size of a labrador, and a third of the size of large breeds like the Great Dane. This makes them suited to relatively small homes and even apartments- which is why cavapoos are becoming very popular in urban areas. Quite a bit bigger than toy breeds like Chihuahua’s, cavapoos have long enough legs to be lightning-fast and, despite being relatively small in stature, they still need an hour’s exercise each day.

The cavapoo breed can range greatly in size and will largely be dependent on the size of its Poodle parent. By 10 months of age, your cavapoo will be fully grown so you don’t need to worry about your puppy getting any bigger beyond this point.