How big will my Cockapoo get?

It depends mainly on the size of Poodle in the cross — toy and miniature Cockapoo mixes tend to stay smaller, while a standard Poodle cross grows larger. If you know your dog's parentage, that's a better guide to expected adult size than a generic average.

When should I switch my Cockapoo from puppy to adult food?

This is worth discussing with your vet, since it depends on your individual dog's size and growth rate rather than a fixed age for every Cockapoo. Smaller mixes are often ready sooner than larger ones.

Why has my Cockapoo's coat changed as it's grown?

A softer puppy coat is commonly replaced by a curlier or wavier adult coat as a Cockapoo matures, which is a normal part of growing up rather than a sign of a problem. It often coincides with the dog approaching its adult size.

When is a Cockapoo fully grown?

Most Cockapoos reach their full height by around 12 months old, but keep filling out in muscle and coat until somewhere between 12 and 18 months. Exactly where in that window a particular dog settles depends heavily on which size of Poodle and Cocker Spaniel sit in its parentage, since a Cockapoo is a cross rather than a standardised breed with one fixed growth curve.

Why the answer isn't the same for every Cockapoo

A Cockapoo is a cross between a Cocker Spaniel and a Poodle, and Poodles themselves range from toy through miniature to standard size, which is why Cockapoos vary so much in adult size and growth speed. A toy or miniature Cockapoo cross typically matures faster and finishes growing sooner than one with a standard Poodle in its background.

That range is also why a generic weight chart for "Cockapoos" as a group is less useful than tracking your own dog's growth curve with your vet, who can factor in your specific dog's parentage and current size rather than a single average.

What growing actually looks like

Height growth tends to slow noticeably after around 9 to 12 months for most Cockapoos, with the dog reaching close to its adult shoulder height by that point. Filling out in chest depth, muscle and the full adult coat texture generally continues for several months after that, often not settling completely until somewhere between 12 and 18 months.

A puppy coat is typically softer and can differ noticeably from the curlier or wavier adult coat that comes through with maturity, which is one of the more visible signs an individual dog is moving out of the puppy stage rather than a precise age marker on its own.

Common questions

How big will my Cockapoo get?: It depends mainly on the size of Poodle in the cross — toy and miniature Cockapoo mixes tend to stay smaller, while a standard Poodle cross grows larger. If you know your dog's parentage, that's a better guide to expected adult size than a generic average.
When should I switch my Cockapoo from puppy to adult food?: This is worth discussing with your vet, since it depends on your individual dog's size and growth rate rather than a fixed age for every Cockapoo. Smaller mixes are often ready sooner than larger ones.
Why has my Cockapoo's coat changed as it's grown?: A softer puppy coat is commonly replaced by a curlier or wavier adult coat as a Cockapoo matures, which is a normal part of growing up rather than a sign of a problem. It often coincides with the dog approaching its adult size.

Sources

Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.

Blue Cross — Pet advice

Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.