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Cavapoo Full Grown: How Big Do Cavapoo Puppies Get?

Updated 01/10/2024: Are you wondering just how big Cavapoo puppies get? Well, you’re not alone. Many Cavapoo owners and potential owners find themselves curious about the full-grown size of an adult Cavapoo. Especially since Cavapoos are considered to be small dogs, but you may have seen some cavapoos that are large.

In this article we will look at:

  • Cavapoo sizes (did you know you can find them in three sizes),
  • How big a full grown adult Cavapoo can get within each size range,
  • Ways you can estimate the size of your new puppy when fully grown, and
  • If there is a difference in personality between the different sized Cavapoos.

How big is a full grown Cavapoo?

Cavapoo owners report a wide range in size for full-grown Cavapoos, varying from 7 to 40 pounds and 8 to 17 inches in height. The miniature Cavapoo, the most popular size, typically weighs between 13 to 25 pounds and stands 12 to 16 inches tall, making it an ideal size for many.

Cavapoo Full Grown: How Big Will They Get? - title pic - cavapoo puppy with chew

Is it a Cavapoo or Cavoodle?

This charming crossbreed, resulting from a mix between the Cavalier King Charles Spaniel and a Poodle, goes by a few different names. In the United States, ‘Cavapoo’ is the term most commonly used. On the other hand, our friends in Australia prefer ‘Cavoodle.’ But that’s not all; this breed is also known as Cavadoodle, Cavapoodle, and Cavipoo in various circles.

What Size Is an Adult Cavapoo?

In this section, we’ll be comparing the sizes breeders say Cavapoo puppies will be, against the actual sizes reported by Cavapoo owners. As Cavapoos come in various size categories, we’ll examine each size individually for a comprehensive understanding.

Mini Cavapoodle

The Mini Cavapoo, a popular variant among the various Cavapoo sizes, is especially popular with first-time dog owners. This delightful breed blends the best traits of the Cavalier King Charles Spaniel and the Mini Poodle. Given that both the Cavalier King Charles Spaniel and the Mini Poodle are of a similar small size, one might expect that there would be little variation in size.

However, this assumption doesn’t entirely hold true. Breeders have observed that the Mini Cavoodle typically ranges between 13 to 25 pounds in weight and 12 to 16 inches in height. This variance highlights the unique nature of these charming designer dogs where you never really know what you are getting until they are fully grown.

Cavapoo owners report an even greater range in size with weights that ranged from 9 pounds up all the way up to 30 pounds.

Cavapoo Full Grown: How Big Will They Get? Black and White puppy

Toy Cavapoo

The Toy Cavapoo is the tiniest member among the Cavoodle sizes, a delightful blend of the Cavalier King Charles Spaniel and a Toy Poodle parent. This combination places them firmly in the category of small dog breeds.

Breeders typically describe the Toy Cavapoo as weighing between 10 and 15 pounds, with a height of 9 to 12 inches at the shoulder. However, like their slightly larger counterparts, the Mini Cavapoos, Toy Cavapoos also exhibit a considerable range in adult size. Toy Cavoodle owners have reported that their full-grown pups can vary significantly, with adult sizes ranging from 7 to 20 pounds.

There were even a few reports of toy Cavapoos growing to over 20 pounds and one person stated that their Toy Cavoodle was 37 pounds.

This variability underscores the importance of acquiring a puppy from a reputable breeder, especially for those seeking smaller Cavapoos. Engaging directly with a quality breeder allows you to ask detailed questions and receive informed answers about the breeding history, ensuring you have a clear understanding of your puppy’s potential adult size.

Standard Cavoodle

Within the Cavapoo size ranges, the Standard Cavapoo represents a great choice for those who prefer larger breeds while still embracing the unique charm of Cavapoos. This variant is produced by breeding a larger Cavalier King Charles Spaniel with a small Standard Poodle or Moyen Poodle.

Some breeders affectionately refer to these dogs as “Cuddle” Cavapoos, though this size is still relatively rare.

According to breeders, the weight of a Standard Cavoodle typically falls between 35 and 50 pounds. However, it’s noteworthy that none of the respondents in a recent survey had a fully grown Standard size Cavoodle to provide a direct comparison of the actual size.

This rarity makes the Standard Cavapoo a unique and intriguing option within the broader Cavapoo range, blending the appeal of a larger dog with the distinctive qualities of the Cavapoo.

Tan colored Cavapoo puppy outside

5 Indicators That Can Help Predict a Cavapoo’s Size

Unlike purebred dogs, where detailed information about their growth cycles is readily available, the world of designer dogs, including Cavapoo dogs, presents a different scenario. With the Cavapoo being a hybrid dog breed, there’s less documented data regarding their growth patterns compared to their purebred counterparts.

Instead, we can use these 5 indicators that will give us clues to how big your Cavapoo will be when full grown and when they will stop growing:

  1. Cavapoo size categories
  2. Actual size of their parents and past generations
  3. Past litters
  4. Gender
  5. Doodle generation

1. Cavapoo Size Range

Cavoodles are bred in three main sizes: toy, mini, and standard. Breeders set these size categories by estimating the puppy’s adult size, often relying on the sizes of their previous litters. While experienced breeders can generally predict the full-grown size of a Cavapoo with reasonable accuracy, less experienced breeders may find this more difficult.

The size range for Cavoodles can also vary among breeders and even within litters, depending largely on the size of the parent dogs.

Additionally, you might encounter Teacup Cavapoos in some advertisements. These small pups usually represent the smaller end of the toy Cavapoo size range. Due to health concerns and limited data, Teacup Cavapoos are not recommended, which is why they are not included in this discussion.

Cream Cavapoo dog laying on floor looking at camera

2. Actual size of their parents and past generations

The best way to estimate the size of a cavapoo is to look at the parent breeds. The size of Cavapoos is greatly affected by the Poodle parent used in breeding, as Poodles come in toy, mini, small standard (moyen), and standard sizes. This classification is pivotal in Cavapoo breeding, where the size of the Poodle chosen is crucial for determining the Cavapoo’s final size.

For instance, a standard Cavapoo is typically bred from a standard Poodle, while the smaller Cavapoo varieties use toy or mini Poodles. Consequently, the similarity in size between parent breeds, such as the Mini Poodle and the Cavalier King Charles Spaniel, can make it easier to predict the size of offspring like the mini Cavapoo.

Size Chart for the Poodle and Cavalier King Charles Spaniel

BreedHeightWeight RangeAKC Group
Standard PoodleOver 15 inches40-70 poundsNon-sporting
Moyen Poodle*15-20 inches15-35 poundsNon-sporting
Miniature poodle10-15 inches10-15 poundsNon-sporting
Toy PoodleUnder 10 inches4-10 poundsToy
Cavalier King Charles Spaniel12-13 inches13-18 poundsToy
* While various kennel clubs acknowledge the moyen Poodle as a distinct size, the American Kennel Club groups them with the standard Poodles.

Predicting the size becomes more complex with a significant size difference between the parents, such as between a Cavalier and a standard Poodle. Puppies from such pairings can vary more in size, even within the same litter.

Additionally, the impact of recessive genes must be considered. Size-related genes from previous generations can influence the puppy’s final size. Knowledge of the sizes of the parents, grandparents, and great-grandparents is essential. If these ancestors are similar in size, the puppies are likely to be similar as well. However, if there is size variation in the lineage, the puppies’ sizes could be unexpectedly different.

Cavapoo Full Grown: How Big Do They Get? - pin of Cavapoo on beach

4. Looking at Past Litters

You can estimate the adult size of your Cavapoo, by reviewing past litters from the same breeding pair. While a single litter might not provide sufficient data to predict future sizes accurately, if the breeding pair has produced several litters, a consistent pattern in the sizes of the puppies might emerge.

If these litters have consistently produced puppies of similar sizes, it’s reasonable to expect that your puppy will also fall within that same size range.

5. Gender Influence

The size of your Cavapoo can also be influenced by its gender. Generally, male Cavapoos tend to be about 10% larger than their female counterparts.

6. Generation

The generation of a Cavapoo plays a significant role in determining its size. For instance, an F1 Toy Cavapoo, a cross between a Cavalier King Charles Spaniel and a Toy Poodle, typically shows a wider size variation compared to an F1b Toy Cavapoo, which is bred back with another Toy Poodle.

F1 and F1 Toy Cavoodle generation chart

The reason for this lies in genetics. An F1b Toy Cavapoo inherits more genes from the Toy Poodle parent. Dogs receive one set of genes from each parent, so the F1 Toy Cavoodle, being half Toy Poodle and half Cavalier, passes down a mix of genes from both breeds. When these genes combine with the Toy Poodle’s genes in the F1b generation, the resulting puppies tend to exhibit more Toy Poodle characteristics, influencing their size.

Cavapoo Full Grown: How Big Will They Get? - Adult cavapoo with flowers

When is a Cavapoo Full-Grown?

Cavalier King Charles Spaniel – mini 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.

Age when Cavapoos Reached their Adult Size

BreedAge They Reach Adult HeightAge They Reach Adult Weight
Cavalier King Charles Spaniel8-9 months12 months
Standard Poodle18 months24 months
Mini Poodle8-9 months12 months
Toy Poodle6-7 months10 months
Estimated age they reach their adult size for the Cavalier King Charles Spaniel, and poodle

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 standard poodle.

Need a name for your new cavapoo puppy? Checkout our post on 399+ Best Cavapoo Dog Names: Our Top Picks

Cavapoo on beach

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 weeksFull-Grown WeightPercentage of 16 week weight
  • You can use a puppy weight calculator, but these were wrong for many people. I used one with my own dog and the final weight was off by about 10 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.

Does size affect the temperament of a Cavapoo?

The size of a Cavapoo generally does not have a significant impact on its temperament. Cavapoos, known for their friendly nature, are an intelligent breed, and these traits are consistent across different sizes, from the smaller to the larger pups.

They are renowned for their affectionate and sociable disposition, making them ideal companions for families with young children and other pets. Regardless of their size, Cavapoos typically exhibit a loving and gentle temperament, combined with a playful and energetic personality.

This makes these adorable pups well-suited to a variety of living environments and lifestyles, maintaining their charming characteristics irrespective of their physical stature.

Tell Us How Big Your Adult Cavapoo Is

Cavapoo Full-Grown Resources

Elizabeth Taylor

Thursday 21st of December 2023

We have a 49 pound Cavapoo and he's 2 years old. He's the best and sweetest dog I've ever had! We love him!


Wednesday 21st of June 2023

Looking for a 3-5 year old Cavapoo