If you are looking to get a Cavapoo, you may be wondering how big they will get? Or maybe you already have a Cavapoo puppy and you want to know when they will be full grown.
Either way we are here to help. In this article we will look at:
- The sizes Cavapoos come in (did you know you can find them in three sizes),
- How big a full grown adult Cavapoo can get within each size range, and
- Ways you can estimate the size of your Cavapoo when fully grown
How big is a full grown Cavapoo?
According to Cavapoo owners who shared their Cavapoo’s full grown size, Cavapoos can weigh anywhere between 7 to 40 pounds. Their reported height fell between 8 to 17 inches at the shoulder. Most Cavapoos reached their adult size by 12 months old. The large size range for the Cavapoo is due to the different sizes the Cavapoo comes in. The most popular Cavapoo size, the mini Cavapoo weighs between 13 to 25 pounds and is 12 to 16 inches tall.
Keep reading to learn how to estimate the adult size of your Cavapoo.
Cavapoo vs Cavoodle?
So, as you might already know the Cavapoo is a cross between the Cavalier King Charles Spaniel and poodle. But did you know that this crossbreed is known by a few different names.
Here in the USA we commonly refer to them as the Cavapoo. However, in Australia they are referred to as Cavoodles. They also go by the names; Cavadoodle, Cavapoodle, and Cavipoo.
In this post we will be using all the names so we don’t leave anyone out of the conversation.
6 Indicators That Can Help Predict a Cavapoo’s Size
Since the Cavapoo is a crossbred there is less documented information about their growth cycles than there is for purebred dogs.
Instead, we can use these 6 indicators that will give us clues to how big your Cavapoo will be when full grown and when they will stop growing:
- Cavapoo size categories
- Standard size of the purebreds used
- Actual size of their parents and past generations
- Past litters
- Gender
- Doodle generation
1. Cavapoo Size
The Cavoodle is bred in three size ranges; toy, mini, and standard. The sizes are set by the breeders and generally reflect what the breeder believes the puppy’s size will be when they grow up.
Because of this, the actual height and weight ranges for each size category can be slightly different based on the size of the breeder’s own breeding dogs.
However, even then the size ranges are only approximate. Although you would expect a mini Cavapoo to be smaller than a standard Cavapoo, it’s not always the case.
We will discuss that more in a minute.
You may also see ads for Teacup Cavapoos. These petite pups typically fall on the lower end of the toy Cavapoo size scale. Since they are often considered unhealthy, there is little data on them. Therefore we decided not to include them in this post.
2. Standard Size of the Poodle and Cavalier King Charles Spaniel
Typically, the size ranges listed above are determined by the size of the poodle that is used in the breeding.
The poodle comes in four sizes; toy, mini, small standard or moyen and standard.
Quick note: Although the American Kennel Club does not recognize the moyen poodle as a separate size, other kennel clubs do. In the US, medium sized poodles are part of the standard poodle group. But as you can see from the chart below, there is a missing weight range between the standard and mini poodle.
The Cavalier King Charles Spaniel comes in one size; toy.
As you might guess the toy Cavapoo is a crossbreed between the Cavalier and toy poodle. The mini Cavapoo is a crossbreed between the Cavalier and mini Poodle and lastly the standard Cavapoo uses a small standard poodle in its breeding.
Size Chart for the Poodle and Cavalier King Charles Spaniel
| Breed | Height | Weight Range | AKC Group |
| Standard Poodle | Over 15 inches | 40-70 pounds | Non-sporting |
| Moyen Poodle* | 15-20 inches | 15-35 pounds | Non-sporting |
| Miniature poodle | 10-15 inches | 10-15 pounds | Non-sporting |
| Toy Poodle | Under 10 inches | 4-10 pounds | Toy |
| Cavalier King Charles Spaniel | 12-13 inches | 13-18 pounds | Toy |
Is the Cavapoo too small for you? Check out our post Bernedoodle Full-Grown to see if they are a better fit.
3. Actual size of their parents and past generations
So, since there is a range in the size of purebred dogs, the next step is to look at the actual size of the breeding dogs. Combining the size of the parents with the standard ranges for the breeds will help you to zone in on the future size of your pup. But there are issues with this approach.
Looking at the parent’s sizes only really works when the parents are close in size. If we look at the chart above we can see that the Mini poodle is close in size to the Cavalier. Because of this, the mini Cavapoo will be the easiest to estimate their full-grown size.
However it gets tricky to predict future size when you combine dogs that are not close in size, like with the Cavalier and standard poodle. These puppies will have a greater variation in their full-grown size even when they are from the same litter.
Another issue is that the genes that affect size can be passed down from previous generations. When looking to gauge the full grown size of a puppy you need to know the size of the parents, grandparents and great grandparents. If all the generations are close in size, it’s reasonable to expect that the puppies will be close to the same size. But if they are not, you may get a surprise.
4. Looking at Past Litters
Another way to gauge the adult size of your Cavapoo is to look at the previous litters, if they had the same parents.
However, one litter will not be enough to gauge future size, but if the breeding pair has had a few litters you should see a pattern in the sizes they produce.
Especially if they were all consistent in size, then you should be able to assume that your puppy will fall in the same range.
5. Gender
The gender of your puppy will also affect their size. On average, males are about 10% larger in size than females.
6. Generation
Another factor that affects the size of a Cavapoo is their doodle generation.
An F1 toy Cavapoo, which is a Cavalier King Charles Spaniel and toy poodle, will have a larger size variation than a F1b Toy Cavapoo that was crossed back to another toy poodle.
This is due to the F1B Toy Cavapoo inheriting a greater number of genes from the toy poodle.
Remember that dogs inherit one copy of all genes from each parent.
Since the F1 toy Cavoodle is already half toy Poodle and half Cavalier when the genes are passed down, some genes will be passed on from each breed. Those genes will be added to the toy poodle’s genes, giving the pups more toy Poodle characteristics.
What size is an Adult Cavapoo?
In this section we will compare the sizes the breeders claim the pups will be to the actual sizes Cavapoo owners reported. Since Cavapoos come in a few different sizes, we will look at each size individually.
Mini Cavapoodle
The Mini Cavapoo may be the most popular size of all the cavapoo sizes. These pups are a combination of the Cavalier King Charles Spaniel and miniature poodle. Since the Cavalier and the mini poodle are close in size we expected that there would be little variation in size.
But that is not what we found. As it turns out breeders suggest that the mini Cavoodle will be between 13 to 25 pounds and 12 to 16 inches tall.
But when asked how big their mini Cavapoos were at their adult size, Cavapoo owners responded with weights that ranged from 9 pounds up all the way up to 30 pounds.
Toy Cavapoo
The toy Cavapoo is the smallest of the Cavoodle sizes. They are a combination of the Cavalier King Charles Spaniel and a toy poodle.
Breeders list the toy Cavapoo as being between 10 and 15 pounds with their height between 9 and 12 inches tall at the shoulder.
But just like with the mini cavapoo the toy version can have a wide range in sizes. When asked how big their full grown pups were, Toy Cavoodle owners reported that their pup’s adult size was between 7 and 20 pounds.
There were a few reports of toy Cavapoos growing to over 20 pounds and one person even stated that their toy Cavoodle was 37 pounds.
How does this happen?
It’s possible that the litter was actually bred using a mini poodle instead of a toy poodle, if the breeder has both sized poodles around. It’s also possible that the poodle was bred down from a larger dog and therefore still carried genes from a larger ancestor.
This is one of the many reasons we recommend getting a puppy directly from a quality breeder. Dealing directly with a breed will allow you to ask lots of questions and get answers from the person who knows how they have been bred.
Standard Cavoodle
A standard sized cavapoo is created by breeding a larger sized Cavalier King Charles Spaniel with a standard or moyen poodle. These pups are referred to as a “Cuddle” Cavapoo by some breeders. This size is still fairly rare to find.
The standard Cavoodle falls between 35 and 50 pounds according to breeders. Unfortunately none of the responders had a full grown standard size Cavoodle to compare the actual size.
When is a Cavapoo Full-Grown?
Cavalier King Charles Spaniel – poodle mix owners report that their Cavoodle stopped growing at around 8 to 9 months. This is in line with the age that both the mini poodle and Cavalier King Charles Spaniel also reach their full height as you can see by the chart below.
| Breed | Age They Reach Adult Height | Age They Reach Adult Weight |
| Cavalier King Charles Spaniel | 8-9 months | 12 months |
| Standard Poodle | 18 months | 24 months |
| Mini Poodle | 8-9 months | 12 months |
| Toy Poodle | 6-7 months | 10 months |
But this age will depend on the size of the poodle used in breeding. A toy Cavapoo will stop growing sooner than one mixed with a moyen poodle.
The doodle generation may also affect the age in which a Cavapoo will stop growing. A larger F1b Cavapoo that is bred back to a small standard poodle or moyen poodle will take longer to reach their full grown size.
How to determine the size of your Full Grown Cavapoo?
Because of all the factors listed above, guessing how big your mixed breed puppy will be when full-grown is difficult, but there are a few ways that people use.
- The first is to double their weight at 16 weeks. We put this to the test using self reported data on actual Cavapoo puppies.
As you can see from the chart below, the three mini Cavapoos that we had data on did come close to doubling their 16 week weight. Though I think this works better for dogs that reach their full-size by 12 months.
| Weight at 16 weeks | Full-Grown Weight | Percentage of 16 week weight |
| 10 | 17 | 1.7 |
| 6 | 12 | 2.0 |
| 11 | 19 | 1.7 |
- There are also puppy weight calculators, but these were wrong for many people. I used one with my own dog and the final weight was off by a lot.
- Another way is to look at the parent’s size. This may give you an idea of how big your puppy will be. But again this is not 100 percent accurate.
- Puppies can inherit unseen traits from the parents that were handed down by grandparents or even great grandparents.
- An example of this is one responder stated that their 12 pound Mini Cavoodle had a one parent that was 9 pounds and one that was 7 pounds.
- There are also DNA tests that claim to be able to tell you how big your puppy is based on genetic markers. However they are still learning about how this works.
Tell Us How Big Your Adult Cavapoo Is
Cavapoo Full-Grown Resources
- Cavalier King Charles Spaniel – American Kennel Club
- Standard Poodle – American Kennel Club
- Miniature Poodle – American Kennel Club
- Toy Poodle – American Kennel Club