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If you are considering the Cavapoo dog breed, you will likely want to know the size that they are likely to reach. What is their fully grown adult size and how big will they grow? I decided to conduct some research into the topic which I hope will help you.
So, how big do Cavapoos get? The average Cavapoo stands between 9 to 14 inches in height and weighs between 12 to 25 pounds at full adult size. The parental poodle used in breeding will largely dictate how large this dog ultimately becomes.
Cavapoo’s are a mix of the Cavalier King Charles Spaniel and the Poodle dog breeds; both of which are considered small dogs.
It comes as no surprise that a Cavapoo is equally considered to be a small dog.
Due to their small nature, they are an excellent choice for young families and those limited to space.
Nevertheless, it’s crucial to understand how big they get once they reach maturity.
Let us now take a closer look at their growth rate, before we look at some other considerations regarding their size.
Average Cavapoo Weight And Size As Reported By Owners
It is very difficult to predict and give estimations for the weight and height of a Cavapoo. Even with reports from owners, providing exact pounds and inches is a challenge.
However, the type and size of the Poodle (Toy/Miniature) is the main determining factor in how big the Cavapoo will be as a full-grown adult; affecting both their weight and size.
This is why more experienced breeders are often able to make a close approximation based on the size of the parents.
- Toy Poodles are generally no taller than 10 inches and weigh between 4 – 6 pounds.
- Miniature Poodles grow to a height of 10 to 15 inches in height and weigh between 10 – 15 pounds.
- Cavalier King Charles spaniels grow 12 – 13 inches at the shoulder and weigh around 13 to 18 pounds.
Going on the above information on the parents, experienced breeders can make a reasonably good guess on the size of the litter.
Generally speaking, Cavapoos are 9 to 14 inches in height and 12 to 25 pounds in weight.
Another reason why dogs can vary in height and weight is that each Cavapoo is unique in what traits their inherent and what characteristics are dominant.
In every litter, there is always a larger puppy followed by average-sized puppies and then a runt.
Many owners with more than one Cavapoo, report having Cavapoo of different sizes. Even despite the dogs being close in age and sometimes, even from the same breeder!
It is a true statement that each Cavapoo is truly unique.
Cavapoo Growth Rates
Cavapoos come in two different height categories – Miniature and Toy.
Toy Cavapoos grow to about 12 inches at the shoulder while miniature Cavapoos can reach 14 inches at the shoulder.
Keep in mind that the smaller the breed, the faster they reach adulthood.
n the toy category, most puppy’s growth will begin to slow down at around eight or nine months.
Cavapoo’s can become adults at eight or nine months, or it may take longer, but they reach adulthood by around a year.
Let’s look at the following information regarding the growth rate of each category from newborn to a year old.
Toy Breed Weight
| Age | Weight |
| One Month | 14 Ounces (0.87 Pounds) |
| Two Months | 22 Ounces (1.37 Pounds) |
| Three Months | 28 Ounces (1.75 Pounds) |
| Four Months | 38 Ounces (2.3 Pounds) |
| Five Months | 43 Ounces (0.87 Pounds) |
| Six Months | 50 Ounces (2.68 KG) |
| Seven Months | 54 Ounces (3.37 Pounds) |
| Eight Months | 58 Ounces (3.6 Pounds) |
| Nine Months | 59 Ounces (3.68 Pounds) |
| Ten Months | 65 Ounces (0.87 Pounds) |
| Eleven Months | 68 Ounces (4.06 Pounds) |
| Twelve Months | 70 Ounces (4.37 Pounds) |
Miniature Breed Weight
| Age | Weight |
| One Month | 2 Pounds |
| Two Months | 3 Pounds |
| Three Months | 4 Pounds |
| Four Months | 6 Pounds |
| Five Months | 7 Pounds |
| Six Months | 9 Pounds |
| Seven Months | 11 Pounds |
| Eight Months | 12.5 Pounds |
| Nine Months | 13 Pounds |
| Ten Months | 14 Pounds |
| Eleven Months | 16 Pounds |
| Twelve Months | 18 Pounds |
As you can see, Cavapoo’s from Toy Poodles are considerably lighter; 4.37 pounds vs 18 pounds at one year of age on average.
What Age Are Cavapoo’s Fully Grown?
Most dog owners long to make the most of the puppy stage because it goes by so quickly. Tjhey are also so cute during this time!
Puppyhood is also a crazy stage where these little dogs rampage through your home breaking, chewing, and tearing everything in sight, so some owners like this stage to pass as quickly as possible and enjoy the company of a more calm and mature dog.
Some puppies take a long time to grow to maturity, and it can take as long as two years. For other dogs, maturity depends on their breed and size.
Each Cavapoo is different and may not be considered mature at an age most dogs would mature. Toy dogs grow faster as they are the smallest size, so they can become adults as early as eight or nine months but usually no longer than a year to reach maturity.
Cavapoo’s reach adulthood when they weigh between 12 to 25 pounds, and that usually takes about a year.
For a Cavapoo to reach adulthood, the Cavapoo pup must reach three crucial developmental stages that include:
- Mental maturity,
- Physical maturity, and
- Sexual maturity.
These three stages are often not completed at once, smaller dogs reach physical maturity early, but by no means are they mentally or sexually mature.
Adult size may be reached at an early stage, but it may take time for mental and sexual maturity to catch up, as every dog is different.
A Cavapoo might reach sexual maturity before reaching psychological or physical maturity.
A dog might even become pregnant as young as six months of age; that’s if the dog in question wasn’t neutered.
At six months of age, a dog might be capable of giving birth but not necessarily physically or mentally mature.
Many small breeds like Cavapoo’s are no longer puppies by the time they are 18 months old, but it can vary by a few months either way.
Do Cavapoos Experience Growth Spurts?
From the moment you get a Cavapoo as a puppy, it will appear that your dog is constantly going in and out of growth spurts.
Typically, a puppy is brought home at the 8 week old age, which is when they are most likely other puppy breeds.
It’s actually common for puppies of various breeds to look similar at a young age; this is before their characteristics start to develop as they grow and mature.
However, by the age of 12-16 months, you’ll begin to notice Cavapoo-specific traits and when they start to differentiate from other breeds.
It is also at this time that your Cavapoo will need to consume a lot of good quality food (like this recommended grain-free brand on Amazon). This will enable healthy weight gain and subsequent growth in size.
It is between the ages of 4-6 months that your Cavapoo will gain the majority of their size (~75% of their full adult weight). This is similar to other small dog breeds.
However, there are a number of factors involved with the general growth rate and frequency of growth spurts.
The most important are food consumption, food quality, health, and the amount of exercise given.
During their growth, Cavapoo puppies will go through the following various stages:
- Newborn (1-2 weeks old): Early in life a Cavapoo is blind, deaf and has not yet formed any teeth. They need to be kept warm and fed nutritious food.
- Transitional Period (2-4 weeks): At this stage, they will begin to open their eyes/ears and begin to learn how to communicate (make barking sounds).
- Socialization Stage (4-12 weeks): it is here that a Cavapoo will learn to socialize with people and other dogs; they also start to eat more substantial dog food during this time.
- Adolescence (6-12 months): Here, they reach their physical maturity – weight and height.
- Maturity (12 month-2 Years+): this is when you can expect your dog to reach their social maturity. This is when they generally calm down.
Finally
Cavapoo puppyhood can be an exciting time for both the dog and you as their owner.
Most puppies will not know how to behave, especially in the early stages of puppyhood and it can be a testing time as an owner.
That being said it’s important to train your dog from a young age to ensure they are well behaved, yet still curious and willing to play later in life.
Effective training takes time, persistence patience, but it’s worth it in the end.
It’s the same for any bread of dog. The best thing you can do is research how to train a puppy ahead of time; long before you bring them into your home.
While the puppy phase in a Cavapoo is generally longer than what is experienced with some other breeds of dog, all in all, the time is still short.
There are even some aspects of this phase you will miss. You should enjoy the early days as much as possible because it is when they are most excited and inquisitive with all in which they come across.
Cavapoo’s are adorable sweet-natured dogs that are suited to living with anybody, from families with young children to older adults. They can live anywhere from an apartment to a house with a small garden.
A lot of owners report how special this breed of a dog truly is; they are intelligent (acquired from their poodle genes) whilst being gentle all the while (acquired from the Cavalier King Charles spaniel side).
Ultimately, a Cavapoo is a small breed of dog. While there can be differences between dogs, especially depending on the Poodle Parent type (Toy/Miniature), you should expect your dog to be around 9 to 14 inches in height and 12 to 25 pounds in weight.
Related Questions
Cavapoos are considered and classified as medium-sized dogs.
Cavapoos are generally classified as medium dogs, although some cavapoos will reside in the small classification due to the line of dogs they are bred from, or before they reach adult maturity.
Cavapoos can come in different sizes. This is due to the fact that as a hybrid dog, cavapoos can be bred from poodles of different sizes (toy, miniature, medium, and standard). Each of which will impact the expected size of the cavapoo.
Looking at other Poodle Hybrid breeds? Wondering how large they get, too? Well, my following size guides may be of interest:
- How Big Will A Doxiepoo Get?
- How Big Do Morkie Poos Get?
- How Big Do Pomapoos Get?
- How Big Do Yorkipoos Get?
- How Big Do Maltipoos Get?
Related guides you may want to read:
I am an experienced pet owner with decades of experience owning a number of different pets, from traditional pets like dogs and cats, to the more exotic like reptiles and rodents. I currently own a Cockapoo (pictured) called Bailey. I am also the main writer and chief editor here at Pet Educate; a site dedicated to sharing evidence-based insights and guidance, based on my vast pet ownership knowledge, experience, and extensive research.