Cockapoo Size Chart for Maxi, Miniature, Toy, and Teacup Cockapoos

If you are looking for a Doodle on the small-to-mid end of the size spectrum that is happy to play, have fun and then curl up on the sofa with you at the end of the day, the Cockapoo will do you very nicely. However, you might be curious to know how big Cockapoos get, or if you have already adopted one, how big your puppy will get. In this Cockapoo size guide, we will aim to provide all the information you need to answer these questions. You’ll also find links to our interactive Cockapoo puppy growth chart and calculator, which will predict how much your Cockapoo will weigh when full-grown!

The Different Types of Cockapoo

A perfect combination of the sweet-natured Cocker Spaniel and the smart, sporty Poodle, Cockapoos are one of the oldest Doodle breeds around and incredibly popular with Poodle-mix fans. Also known as Cockapoodles, Cockerpoos, or Cock-a-Poos, these darling dogs are highly adaptable, making them perfect for pretty much any type of family setup.

Lovable, loyal, and highly trainable, Cockapoos make great pets for those looking for a laid-back companion dog. While they are prone to quick bursts of energy and love to play with their owners, their exercise requirements are pretty modest compared to other Doodles. This, coupled with the fact that they are easy to care for and super effortless to fall in love with, means those who choose to take on one of these gorgeous pups never regret it.

Cockapoos have been around since roughly the 1950s, so they are fairly established as hybrid dogs. For this reason, you will likely be able to choose between the various Doodle generations as outlined below.

1st Parent2nd Parent% Cocker Spaniel*% Poodle*
F1 Cockapoo (first-generation)Cocker SpanielPoodle50%50%
F1B Cockapoo (first-generation backcross)F1 CockapooPoodle25%75%
F1BB Cockapoo (first-generation backcross backcross)F1B CockapooPoodle12.5%87.5%
F2 Cockapoo (second-generation)F1 CockapooF1 Cockapoo50%50%
F2B Cockapoo (second-generation backcross)F1 CockapooF1B Cockapoo37.5%62.5%
F2B Cockapoo (alternate cross)F2 CockapooPoodle25%75%
F3 / Multigen CockapooF1B Cockapoo or higherF1B Cockapoo or higherVariesVaries
*These are generic calculations only – genetics are rarely mathematically accurate.
Doodle Generations explained 2022

Just keep in mind that genes are funny old things. Opting for a puppy with more Cocker or Poodle DNA doesn’t necessarily mean you will end up with a dog that displays more of that breed’s physical or temperament traits.

Cockapoo Size Predictions

While the majority of Cockapoos will either be the result of a Cocker-Minature Poodle or Cockapoo pairing, Toy and even Standard Poodles have also been brought into the mix.

Add to this the fact (which people often don’t know) that Cocker Spaniels come in different sizes too – although these are not quite as varied as Poodles ­– and you’ve got yourself a lot of options.

Generally speaking, English Cocker Spaniels are larger than their American cousins. Moreover, Spaniels that are still bred to work can be both taller and heavier than companion dogs. There are also variations in temperament between these dogs.  

However, these are the generally recognized standards for each of the Cockapoo types:

 Maxi CockapooMiniature CockapooToy CockapooTeacup Cockapoo
WeightOver 25 lbs13-25 lbs6-12 lbsUnder 6 lbs
Height*16-22 inches11-15 inches10-11 inchesUnder 10 inches
Age at Full-Grown12-14 months9-12 months7-9 months5-7 months
*A dog’s height is measured to the withers, which is the space between the shoulder blades.

Growth patterns of Cockapoos vary based on their type and potential adult size. All dogs do the majority of their growing in the first six months of their lives. Smaller Doodles such as Teacups and Toys usually reach their adult height at this time, as well as more than 80% of their total weight.

Even Miniatures and Maxis will reach more than 75% of their adult height in this time and approximately 60% of their total weight. Cockapoos on the larger end of the spectrum will hit their full height by 12 months but may continue to increase in weight until they are around 14 months old.

The below Cockapoo size chart / graph shows the average weights by age (in weeks), by size of Cockapoo. It shows weight data from our Doodle Weight Prediction Calculator.

As of October 24, 2022, we’ve received over 8,800 accurate Cockapoo weight submissions through our calculator.

Maxi Cockapoos

Maxi Cockapoos often reach half their total weight around 5 months and their adult weight at 14 months.

So, you can calculate their potential adult weight at 18 weeks by taking what they weigh at that age and multiplying it by two.

Mini-Medium Doodle Weight-Formula

Miniature Cockapoos

Miniature Cockapoos often reach half their total weight around 5 months and their adult weight at 12 months.

So, you can calculate their potential adult weight at 15 weeks by taking what they weigh at that age and multiplying it by two.

Toy Doodle Weight Formula
You can use this same formula for Toy and Teacup Cockapoos.

Toy Cockapoos

Toy Cockapoos often reach half their total weight around 3 months and their adult weight at 8 months.

So, you can calculate their potential adult weight at 15 weeks by taking what they weigh at that age and multiplying it by two.

Teacup Cockapoos

Teacup Cockapoos often reach half their total weight around 3 months and their adult weight at 6 months.

So, you can calculate their potential adult weight at 15 weeks by taking what they weigh at that age and multiplying it by two.

A different formula you could use is: 

Alternative Doodle Weight Formula

At What Age Are Cockapoos Considered Fully Grown?

Cockapoos can reach their adult size anywhere between 5 and 14 months, depending on their type and potential adult size – the bigger the dog, the longer they will need to get there. Your puppy’s breeder should be able to give you more information about this.

As with all dogs, though, Cockapoos reach their adult height first and quite early on. They then continue to increase in weight as their muscles fill out for a couple of months more.

Additionally, this is why it’s particularly important that your Cockapoo puppy gets the correct nourishment he needs to grow that adorable little body into a healthy adult one. Check out these guides on best dog food for puppies here.

How Big is a Full-Grown Cockapoo?

Again, depending on the parent dogs, your full-grown Cockapoo might be six inches tall or 22 inches to the shoulder, and they can weigh as little as 4 pounds and as much as 30 pounds.

The type of Cockapoo you select will allow you to estimate their potential adult height. However, genes are unpredictable things, so you can never be entirely sure. The best thing to do is ask to see the mom and dad if you can. If not, you can track your pup’s growth with our handy Doodle puppy growth calculator.


Cockapoos are sweet, happy, and sociable creatures that do best in households with plenty of people or other dogs. If you are looking to take on one of these pups, you may be concerned about their final size. Hopefully, the information included here goes some way towards addressing your concerns so that you can make the very best choice for yourself and your family.

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The information on this page is for informational purposes only. It is not intended to be a substitute for qualified professional veterinary advice, diagnosis, or treatment. Always seek the advice of your veterinarian or other qualified animal health provider with any questions you may have.

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