Cavapoo Full Grown – How Big Does A Cavapoo Get?

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Cavalier King Charles Spaniels are bred to either a miniature or a toy poodle in order to achieve the small and lovable Cavapoo.

A Cavapoo full grown will typically weigh between 12 to 25 pounds, which places them in the category of being a small to medium breed of dog.

Depending on the type of poodle that was used in the breeding process, a typical Cavapoo will reach a height of between 9 and 14 inches.

Despite the fact that both Poodles and Cavalier King Charles Spaniels are considered to be toy breeds, the size of the Cavapoo will be heavily influenced by the size of the father Poodle.

When Is A Cavapoo Full Grown?

After a year, Cavapoos are considered to have reached their full size.

However, a number of factors, including the parent’s genetics, diet, level of physical activity, and health, may have an impact on their size.

In comparison to larger breeds, the Cavalier King Charles Spaniel reaches full maturity in a very short amount of time.

Poodles, for example, mature the fastest of all breeds. It typically takes both mini and toys 6-7 months to reach maturity.

All Cavapoos reach full maturity on average at about one and a half years of age, however some of the smaller Cavapoos may do so sooner.

how big does a cavapoo get

At What Age Are Cavapoos Sexually Mature?

Female cavapoos typically experience their first heat cycle between the ages of 6 and 8 months.

This means that it is possible for your dog to be sexually mature before it has finished growing.

You need to be extra careful during this time frame and keep checking if your puppy has started her first heat cycle. It is not always noticeable.

If she has started her heat cycle then it is best to stop taking her for walks and to separate her from any male dogs that are at home.

The smell of her heat cycle will drive a male dog nuts and he will do anything he can to get to her.

It is vitally important that she does not become pregnant as she is not yet physically or mentally ready to have a litter.

She has not fully developed yet and being pregnant at his young age can be very detrimental to her health.

It is for this reason that veterinarians are ready to perform sterilization procedures on small breed dogs, such as Cavapoos, as early as six months of age.

Cavapoo size

How Big Does A Cavapoo Full Grown Get?

Your Cavapoo puppy’s parents’ size will be the best indicator of how big your Cavapoo will grow.

The size range for a Cavalier King Charles Spaniel is between 12 to 13 inches tall and they can weigh up to 18 pounds.

A Toy Poodle is the smallest of all Poodles and they are usually under 10 inches in height and between 6 to 9 pounds in weight.

The Miniature Poodle is slightly bigger reaching a height of 11 to 15 inches with a weight of between 15 to 17 pounds.

Cuddle Cavapoos are purposely bred to be larger than all other Cavapoos. The Poodle parent will be a Standard Poodle (the biggest of all Poodles).

Standard Poodles stand taller than 15 inches with an average of 22 inches and weigh between 45 and 70 pounds.

In other words, a Cavapoo born to a Toy Poodle parent will likely mature to a height of 12 inches at the shoulder, whereas a Cavapoo born to a Miniature Poodle parent may grow to a height of 14 inches at the shoulder.

Another fact to keep in consideration is the sex of your puppy. Female dogs tend to end up smaller than male dogs.

Height At Shoulder – InchesWeight – Pounds
Cuddle Cavapoo15+25+
Mini Cavapoo12-1513-25
Toy Cavapoo128-12
Teacup Cavapoo8-105-10


Because Cavapoos are not purebred dogs, their height and weight can differ tremendously.

You will even find great differences between litter mates with most litters having one large puppy, one tiny puppy and the rest being of average size.

The Poodle parent will give an estimate of your Cavapoo’s adult size but it is not a guarantee.

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Irma Bense is an experienced dog owner with over 43 years of experience with dog showing, dog breeding, dog training and general dog ownership. Her love for spaniels also includes the Cavapoo, a wonderful mix breed between a Poodle and a Cavalier King Charles Spaniel. Presently she is the proud parent of two Cocker Spaniels, Charli and Bailey and one Cavalier King Charles Spaniel called Tucker.