When Is a Cavapoo Full Grown Size? (2022)

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If you’re looking to bring an adorable Cavapoo into your family, you probably have several questions about the breed and what to expect.

How big does a Cavapoo get? When do Cavapoos stop growing? How can I guess my Cavapoo’s full-grown size? In general, it highly depends on their genetics and the size of the parent dogs.

In general, a Cavapoo will be fully grown at 1 year old. There are 3 main sizes of Cavapoos that depend on the Poodle parent: Toy, Miniature, and Standard size. The growth curve of the Cavapoo will depend on the size of the parent dog. The toy Cavapoo will reach maturity faster than the standard Cavapoo. Keep reading for more details on when your Cavapoo is full grown.

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Full Grown Cavapoo

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Knowing what to expect with your Cavapoo’s growth can help you prepare. From choosing the right collars and leashes to picking the best crate or cage options, it’s important to have an idea about height and weight expectations. 

Read on to learn everything you need to know about when a Cavapoo stops growing and what its growth pattern could look like.

When Do Cavapoos Reach Their Full Size?

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How big is a Cavapoo? To determine when a Cavapoo is full grown, you need to know a little about the parents. Cavapoos came from the unlikely pairing of Cavalier King Charles Spaniels and Poodles

Cavalier King Charles Spaniels typically reach their adult height by nine months and full weight by one year. Poodles vary based on the size category, with standard Poodles taking the longest to reach full size.

It can take up to two years for a standard Poodle to reach its adult weight. Toy poodles achieve their adult size in less than half that time. 

Depending on their exact lineage, Cavapoos are smaller to medium-sized dogs that reflect their parents’ growth patterns.

The average Cavapoo typically stops gaining weight around the 12th month, though they might gain an inch or two in height after their first birthday.

Larger Cavapoos can keep growing well into their 18th month, while toy Cavapoos can cease physical growth as early as seven and a half months of age. 

You can get a solid idea about your Cavapoo’s adult size by the time they are five to six months old. Like other dog breeds, most Cavapoos reach half of their full size between five and six months of age.

That means you can double their height and weight at five and six months and then average the two measurements to get close to the adult size.

Remember, even though the physical growth stops, a Cavpoo’s mental growth persists long after they reach their adult size. 

How Big Are Cavapoos Fully Grown?

How big do Cavapoos get? Cavapoo adult sizes can vary greatly. Typical heights fall between nine and 18 inches, while Cavapoo full-grown weight can range from nine pounds up to 40 pounds. 

If the Cavapoo size and weight ranges seem extensive, it’s because they are. Breeders typically break Cavapoos into three size categories to address the variations. 

  • Toy Cavapoos are the smallest at no more than 12 inches tall, with adult weights between seven and 13 pounds.
  • Mini Cavapoos reach 12 to 16 inches in height and between 13 and 25 pounds.
  • Standard Cavapoos can reach 18 inches tall and up to 40 pounds.

Since these markers represent the average Cavapoo size and weight, it gives you an idea about when your pup is close to full-grown.

For example, if you have a toy Cavapoo that reaches 10 inches and 18 pounds by its seventh month, it probably won’t get much larger. 

Can You Estimate a Cavapoo’s Full Grown Size?

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It’s important to note that since the Cavapoo is a crossbreed, it’s not always easy to pinpoint full-grown sizes or growth patterns, even a Cavapoo grown-up size.

The above factors can help you estimate a Cavapoo’s adult size, but there are always outliers who deviate from the average Cavapoo’s full size. Be prepared to end up with a larger or smaller dog. 

That said, the most important factors are the size category, the parents, and the puppy’s gender.

However, you might gain some insight from the Cavapoo’s generation and past litter sizes. The more information you can gather about your pup, the more accurate your estimate will be.

Size Category 

As noted above, the three size categories determine how long it takes a Cavapoo to reach its adult size and what that looks like.

How do you know what size category your Cavapoo falls under? Breeders often determine the size category based on the parents’ sizes.

The Cavalier King Charles Spaniel is a smaller breed that typically doesn’t exceed 13 inches in height and 18 pounds in weight. The American Kennel Club (AKC) classifies the Cavalier King Charles Spaniel as a toy breed.

Conversely, Poodles can be rather large, over 15 inches tall and up to 70 pounds for males. Miniature Poodles don’t pass 15 inches in height, and toy Poodles are 10 inches or shorter, which would equate to smaller full-grown Cavapoos adults.

As you can guess, with different classifications within each breed, there are multiple options for crossbreeding, leading to different sizes for a full-grown Cavapoo dog. 

  • Toy Cavapoos come from toy Poodles and Cavalier King Charles Spaniels.
  • Mini Cavapoos have a miniature Poodle parent and a Cavalier King Charles Spaniel parent.
  • Standard Cavapoos have a Cavalier King Charles Spaniel parent and a standard Poodle parent.

Some breeders further manipulate the size categories by adding in teacup and micro variations. While these categories might seem possible, it usually indicates a high probability of health and genetic issues

Parents Actual Sizes

Though general size categories can give you an idea about what to expect and when your Cavapoo is full grown, the parents’ actual sizes might be a better indicator. 

If the parents are similar sizes, it’s a good bet that their pups will fall in the same size range.

For example, using a Cavalier King Charles Spaniel and a Mini Poodle that are about the same height and weight, you can guess that their offspring will be similar.

On the other hand, it’s trickier to guess about the offspring of a Cavalier King Charles Spaniel with a Standard Poodle. Things get even more complicated when you look at different generations or one purebred parent and a Cavapoo parent. 

For example, consider the offspring of a purebred Cavalier King Charles Spaniel mother and a Cavapoo father.

Since the Cavapoo father is half of each breed, the offspring receives half Cavalier King Charles Spaniel genes and half Poodle genes. The mother contributes only Cavalier King Charles Spaniel genes making the litter heavier on those genes.

Crossbreeding different types of Cavapoos can also impact a puppy’s size. If you have a pure miniature Poodle with a Cavapoo that had a standard Poodle parent, it may not be possible to guess the offspring’s size because of the differences in lineage. 

Gender

Like other dog breeds, Cavapoo sizes vary on sex, and male Cavapoos tend to be larger than females when a Cavapoo size is full grown.

If you select a male from the litter, it’s likely that they could end up on the bigger side compared to his sisters with a greater Cavapoo weight. That said, the female pups typically reach their adult size before male pups.

Interestingly, parent genders also impact a pup’s size when cross-breeding purebred dogs of similar sizes. It’s not always the case, but typically female pups will match up closer to their mothers and males closer to their fathers. 

If the parents have noticeable size differences, it’s more likely that the entire litter will settle out somewhere in the middle of the two when they become full grown Cavapoos.

For example, in the case of litters from King Charles Cavalier Spaniels and Standard Poodles, average the parent sizes to estimate the pups’ adult sizes.

Cavapoo Growth Chart: Average Weight by Age

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Knowing about the average Cavapoo full grown size is one thing, but how do you figure out if your pup is on the right track?

While these listings represent estimates, this Cavapoo size chart might give you peace of mind as your pup grows.

Your pup should be just over one pound when you get to bring them home. It’s a good idea to start tracking your Cavapoo’s weight if you’re concerned about their growth. 

  • Three months: 1.5 to 2 pounds
  • Four months: 2 to 3 pounds
  • Five months: 2.5 to 3.5 pounds
  • Six months: 3 to 3.5 pounds
  • Seven months: 3.5 to 4 pounds
  • Eight months: 3.75 to 4.5 pounds
  • Nine months: 4.5 to 5 pounds
  • Ten months: 5 to 6 pounds
  • Eleven months: 6 to 7 pounds
  • Twelve months: 7 pounds and up

Mini Cavapoos would follow a similar growth pattern, though they start and end a little larger than their smaller counterparts.

  • 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 and up 

Standard Cavapoos are rare because of the size difference between standard Poodles and Cavalier King Charles Spaniels.

Expect the growth patterns to mirror that of the Toy and Mini categories, though it could be substantially more challenging to estimate an adult size. 

A Few Caveats About Cavapoo Growth Charts

Your Cavapoo might weigh more or less than average, so it’s more important to follow the general pattern. Pups make greater gains in the early months and slow up significantly as they close in on their adult size.

Puppies should steadily gain weight as they grow, somewhere around five ounces per week for small breeds, like Cavapoos. That said, you might notice some growth spurts where they make noticeable jumps in height and weight.

Finally, it’s important to know that these averages only apply to first-generation Cavapoos. As noted above, guessing adult sizes is tricky when one or both parents are mixed breeds.

It’s easier to estimate the adult size for first-generation Cavapoos because their parents are purebred and only provide one set of genes each. With mixed genes, it’s a mixed bag in terms of genetic outcome.

Is My Cavapoo Done Growing?

Small to medium-sized dogs, like Cavapoos, typically stop growing by their first birthday. That said, your veterinarian is the best person to tell you whether or not your pup is done growing.

They can tell by the puppy’s development and different markers, like knobs on the ribs that suggest continuing bone growth. 

Unfortunately, there is no hard and fast rule or calculation that can give you an exact answer to what your fully grown Cavapoo looks like. That’s because there are so many factors that can impact a dog’s growth, including diet and exercise. 

The best thing you can do for your Cavapoo is to follow your veterinarian’s recommendations. After all, a fully grown Cavapoo might start out on the small side but with proper nutrition and care, they could end up on the higher end of the scale.

Your Cavapoo might end up larger or smaller than anticipated, but their size won’t stop them from loving and snuggling on you!

Cavapoo Full Grown Weight

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Miniature Poodles and Cavalier King Charles Spaniels weigh about 10 to 18 pounds. However, that weight can be a little heavier or lighter depending on the Poodle. So Cavapoos’ weight ranges anywhere from 9 to 25 pounds.

If you are looking for a Cavapoo, It is crucial to ensure you can get details about both parents. Specifically, learn the weight and height of each of its parents.

The information about the Poodle parent can help you understand the size. For example, if bred with a Standard Poodle, the weight will be heavier on average.

Contrasting, a Cavapoo mixed with a toy Poodle will likely be at the lighter end of the weight spectrum.

Cavapoo Full Grown Height

Cavalier King Charles Spaniels stand about 12 to 13 inches high, measuring at their shoulders. So they are not very tall dogs. Because of the different sizes of Poodles, we will want to look at each.

Standard Poodles stand about 15 inches at the shoulder, making them the tallest of the breed. Miniature Poodles also measure about 15 inches or less.

How To Know If Your Cavapoo Is Growing Normally

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Because the size, weight, and height are all built upon averages for Cavapoos. There can always be anomalies or sometimes even concerns.

It is important to know these average milestones, but it can also be helpful to calculate your Cavapoo’s weight with a growth or size chart.

An easy way to calculate your dog’s predicted weight comes down to a simple formula. Current weight is divided by age (in weeks) and multiplied by 52 (weeks in a year), and that answer will yield their predicted weight.

For example, if your pup weighs 10 pounds at 20 weeks you divide 10 by 20 which equals 0.5, and then 0.5 multiplied by 52 equals 26. Which tells you your pup should weigh 26 pounds when fully grown.

Just doing this simple math can help predict your Cavapoos full-grown weight when they reach a year and if their weight will be healthy. If it appears they are going to be unusually small or large check in with your vet.

Toy Poodles are about 10 inches tall, measuring at the shoulder. This height makes them the smallest of the three. But they can still come in under that height, depending on the dog.

Because it can be more difficult (but not impossible) to breed a standard Poodle with a Cavalier, most Cavapoos are part Miniature or Toy Poodle. So the average range for Cavapoo is about 9 to 14inches tall, measuring at the shoulder.

Of course, there can always be anomalies, and your Cavapoo may come in taller or shorter. This range acts as a general average. Even though the Cavapoo’s parents can give us good information, they still receive genes further down the lineage line.

When a Cavapoo Has Reached Full Size

We have covered a lot of information and we want to break that down even further.

Having a full understanding of when your full-grown Cavapoo adult is done growing can help you track their growth and development and detect any possible concerns. Here are factors that determine when a Cavapoo is a full size.

Personality

First, though, let’s cover some personality traits of your new best friend.

Cavapoos are energetic and intelligent dogs. They often enjoy being played with and learning new tricks. They desire to spend time with those they consider family. They have good temperaments and enjoy training.

Cavapoos learn rather quickly and want to please their owner, so they are often eager to follow commands and listen. Not to say it is always a quick and easy process, but they do have the right personality for being trained.

Additionally, a Cavapoos’ size makes it ideal for living in an apartment or smaller home. While they require plenty of exercise, they don’t need much space, making them great companions.

Despite being full-grown Cavapoo, they are prone to developing separation anxiety.

Because of this, don’t leave your Cavapoo alone too frequently or for too long. Allow them to be left alone now and then to develop confidence in being by themselves.

Full Size

Once your Cavapoo’s size is roughly 14 inches tall and weighs anywhere from 9 to 25 pounds, your Cavapoos are likely done growing. Though, keep their age in mind.

After they have gone through their 6-month shedding and fully developed their adult coat around the year mark. Don’t expect any more drastic changes in your pup.

You can continue calculating their weight throughout the first year to ensure they are within a healthy range.

Full-grown Cavapoos do not necessarily imply they are fully mature. Mature, meaning they are well-behaved and won’t chew up your favorite shoes. They will likely still have plenty of energy and require training.

Because all dogs have undesirable puppy tendencies, proper training is imperative for having a well-behaved and loving Cavapoo.

Due to their sensitive nature, they require tons of love and need to avoid boredom. They require about an hour of exercise daily, and their desire to please means they are easy to be trained.

The average lifespan of a Cavapoo is in the 12 to 15-year range. So, adopting a Cavapoo is a long-term commitment to keep in mind.

The Cavapoo Is An Excellent Dog

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Cavapoos are loving and devoted companions. The breed stays small and is relatively easy to care for. This breed is ideal for different families and a variety of different lifestyles.

Cavapoos do well with children and are very loyal. If you just got a Cavapoo, this article should answer all your questions about your Cavapoo’s growth.

If you were thinking about adopting a Cavapoo, now you have the right tools to see if it is what you want.

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