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Cavapoo Size Guide: How Big Does A Cavapoo Get?

After reading this Cavapoo size guide, you will know exactly what to expect when your Cavapoo is reaching adulthood. In addition, you can try our interactive Cavapoo size chart and growth calculator to guesstimate your pup’s full-grown size! 

Cavapoo size
Photo by Mia Anderson on Unsplash

Cavapoo Size Predictions: How Big Is A Full Grown Cavapoo?

Cavapoo a.k.a Cavadoodle or Cavoodle is the sweetest little hybrid mix of Poodle and Cavalier King Charles Spaniel. This pup has inherited the best traits from both parents – their playful and outgoing nature, loving personality, and adorable size. This makes Cavapoo a great furbaby to almost any household. 

But if you’re thinking about adopting one, you’ve probably been wondering – how big does a Cavapoo get?

Cavapoos are considered small sized dogs. Their weight can range anywhere between 9 to 25 pounds, and their height from 9 to 14 inches. Cavapoos usually come in two sizes – mini and toy. Mini Cavapoo is a mix between a Cavalier King Charles Spaniel and a Mini Poodle. Toy Cavapoo is a cross between a Cavalier and a Toy Poodle.

As Cavalier King Charles Spaniel is a smaller dog, they aren’t usually mixed with a Standard Poodle. Therefore, we don’t have the typical Standard Cavapoo. However, some breeders do call mini Cavapoos “Standard” or “Medium”, as they are bigger than the toy version. 

Let’s now have a look at the full-grown sizes of Toy and Mini Cavapoos:

Toy CavapooMini Cavapoo
Weight7-13 pounds13-25 pounds
Height9-12 inches tall at the shoulder12-16 inches tall at the shoulder
When Full-Grown?7.5-11 months11-13 months
A dog’s height is always measured from the tallest part of their shoulder blades a.k.a the withers.

So how can you predict how big your Cavapoo puppy will get? A general rule of thumb is to look at their parents. The size of the parents greatly affects your puppy’s full-grown size. Additionally, female Cavapoos can be slightly smaller than male pups once fully grown. Although the difference isn’t significant, it’s something to keep in mind.

Cavapoo
Photo by Roberto Nickson on Unsplash

F1 vs F1b vs F2b Cavapoo

As with any Doodle, Cavapoo’s size can also be predicted by their generation. To understand this better, let’s have a look at the different Cavapoo generations:

  • An F1 or first-generation Cavapoo has a Cavalier King Charles Spaniel parent and a Poodle parent. (50% Cavalier King Charles Spaniel, 50% Poodle)
  • An F1b or first-generation backcross Cavapoo has a Cavapoo parent and an original breed parent – usually a Poodle. (25% Cavalier King Charles Spaniel, 75% Poodle)
  • An F1bb is a first-generation backcross backcross Cavapoo that has an F1b Cavapoo parent and a Poodle parent (12.5% Cavalier King Charles Spaniel, 87.5% Poodle) 
  • An F2 Cavapoo has two F1 Cavapoo parents. (50% Cavalier King Charles Spaniel, 50% Poodle)
  • An F2b Cavapoo has an F2 Cavapoo parent and a Poodle parent. (25% Cavalier King Charles Spaniel, 75% Poodle)
  • An F2bb Cavapoo has an F2 Cavapoo parent and a Poodle parent. (12.5% Cavalier King Charles Spaniel, 87.5% Poodle) 
  • An F3 Cavapoo or third-generation Cavapoo is a hybrid of different Cavapoo.

Cavapoo Size Charts & Growth Patterns

As full-grown Cavapoos are on the smaller size, they tend to reach their full size sooner than some larger Doodles. Usually, they will do the fastest growing up until they reach half of their adult size. After that, the growth slows down, and usually stops around the time they turn one year old. Depending on their estimated size, either a bit sooner, or later. 

In fact, we’ve created an interactive Doodle puppy growth calculator to make things a bit easier for all Doodle owners. If you’re currently raising a Cavapoo puppy, make sure to try out our Cavapoo size chart and puppy growth calculator to predict their full-grown size!

Mini Cavapoo

Miniature Cavapoo is a mix between a Cavalier King Charles Spaniel and a Miniature Poodle. Mini Cavapoos full-grown size ranges around 13 to 25 pounds in weight, and 12 to 16 inches in height.

Cavapoo
Photo by FLOUFFY on Unsplash

Mini Cavapoos usually reach half of their adult size around 3.5 to 5 months of age. At around 11 to 13 months old, they will reach their full size. 

To calculate your Mini Cavapoo’s size once they reach adulthood, you can try this formula:

Toy Cavapoo

Toy Cavapoo is an adorable mix of a Toy Poodle and a Cavalier King Charles Spaniel, the smallest Cavapoo you can find. Toy Cavapoo’s full-grown weight is usually around 7 to 13 pounds, and their height can range from 9 to 12 inches. 

Generally, Toy Cavapoos reach half of their adult weight at around 3.5 months old, and adult size around 7.5-11 months of age.

To predict your Toy Cavapoo’s size, you can use this simple formula:

Additionally, you also might have heard about the Teacup Cavapoo. Often, many breeders call their toy pups Teacup Cavapoos. However, please keep in mind that puppy mills and irresponsible breeders use unethical practices to produce very small Cavapoos. Learn more about how to choose a responsible breeder here.

For instance, unethical breeders use the smallest puppies from a litter – runts – to breed Teacup Cavapoos. Sadly, runts might already suffer from health problems, and breeding new babies from unhealthy dogs usually affects the puppies as well. 

How Big Is A Full-Grown Cavapoo?

A full-grown Cavapoo can weigh anywhere between 9 to 25 pounds, and stand at around 9 to 16 inches tall. Cavapoos usually reach their full-grown size when they’re 12 months old. Toy Cavapoos tend to reach their adult size around 7.5 to 11 months of age. Miniature Cavapoos reach their full size around 11 to 13 months old. 

Is A Cavapoo A Small Or Medium Dog?

Overall, Cavapoo is regarded as a small hybrid breed dog. However, as we have both Toy and Mini Cavapoos, they can be categorized as either toy or mini/medium sized dogs. Consequently, Toy Cavapoos are smaller, and reach their full size sooner than Mini Cavapoos. 

How Big Do Mini Cavapoos Get?

Miniature Cavapoo’s size is a bit bigger than the Toy Cavapoo. Typically, Mini Cavapoo weighs anywhere between 13 to 25 pounds, and stands at 12 to 16 inches tall at the shoulder.


Cavapoos are small bundles of joy with so much love to give. They love spending time with their humans, can’t say no to a playtime, and they can easily thrive in an apartment. As long as you have time and affection to spare, your Cavapoo pup will be your loyal companion for many-many years. 

Hopefully you’ve found our Cavapoo size guide and puppy growth calculator useful, and gained some insights about the size and growth patterns of those adorable little creatures.  

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