Cavapoo Dog Size – Height and Weight Chart by Age
I met a Cavapoo at a coffee shop last month who weighed 8 pounds at full size. Her sister, from the same litter, hit 17 pounds.
Same parents, same diet, two completely different dogs. That’s how hybrid breeds go. Cavapoo size depends on which parent the puppy takes after, and that makes adult size harder to predict than it is with a purebred.
The Cavapoo dog size ranges from 23–35 cm (9–14 inches) at the shoulder and 3–8 kg (7–18 lbs) in weight. Toy Cavapoos come from Toy Poodle parents and stay on the smaller end. Mini Cavapoos come from Miniature Poodle parents and reach the upper range. They finish growing by 12 months and fill out by 14–18 months.
This guide walks through growth charts by age and the Toy vs Mini split, then compares Cavapoos against similar small breeds.
Table of Contents
Understanding Cavapoo Size
The Cavapoo is a cross between the Cavalier King Charles Spaniel and a Toy or Miniature Poodle. Because this designer dog is a hybrid, its final size comes down to the size of its Poodle parent.
A Cavapoo isn’t a purebred, so the size range varies from one litter to the next. Knowing how Cavapoos grow helps you set realistic expectations for how big yours will get.
Most Cavapoos fall into two groups based on the Poodle parent: Toy Cavapoos and Mini Cavapoos. Both are small companion dogs that suit first-time owners and families.
Cavapoo Size Chart
| Category | Details |
| Full Adult Height | 23–35 cm (9–14 in) at the shoulder |
| Full Adult Weight | 3–8 kg (7–18 lbs) |
| Toy Cavapoo | 3–5 kg (7–11 lbs) |
| Mini Cavapoo | 5–8 kg (11–18 lbs) |
| Full Height Reached | 10–12 months of age |
| Full Weight Reached | 14–18 months of age |
| Size Category | Small designer dog / hybrid dog |
| Parent Breeds | Cavalier King Charles Spaniel + Toy or Mini Poodle |
| Best For | First-time owners, families, lap dog lovers |
Cavapoo Weight Growth Chart
This chart shows average Cavapoo weight by age for males and females. The numbers apply to Mini Cavapoos, which are the most common size. Smaller Toy Cavapoos usually run 20–30% below these ranges.
| Age | Male Weight | Female Weight |
| 1 month | 1.6 – 2.5 kg (3.5–5.5 lb) | 1.4 – 2.3 kg (3–5 lb) |
| 2 months | 2.5 – 4.1 kg (5.5–9 lb) | 2.3 – 3.6 kg (5–8 lb) |
| 3 months | 4.1 – 5.0 kg (9–11 lb) | 3.6 – 4.5 kg (8–10 lb) |
| 4 months | 5.0 – 6.4 kg (11–14 lb) | 4.5 – 5.4 kg (10–12 lb) |
| 5 months | 6.4 – 7.7 kg (14–17 lb) | 5.4 – 6.4 kg (12–14 lb) |
| 6 months | 7.7 – 9.1 kg (17–20 lb) | 6.4 – 7.3 kg (14–16 lb) |
| 7–9 months | 9 – 13 kg (20–28 lb) | 7 – 10 kg (15–22 lb) |
| 10–12 months (adult) | ~11 – 12 kg (18–25 lb) | ~9 – 11 kg (15–20 lb) |
Cavapoos grow fastest in the first six months, then slow down as they near adult size. By 10–12 months, most have reached their full height. Some keep filling out in muscle and chest through 14–18 months.
Watching a Cavapoo grow is one of the better parts of owning one, but the averages are just averages. Genetics, diet, and health all nudge the numbers around. A small Toy Cavapoo might be done growing by 9 months, while a larger Mini can keep going until 14.
Toy Cavapoo vs Mini Cavapoo
Toy Cavapoos come from a Toy Poodle parent and stay the smallest, usually 23–28 cm (9–11 inches) tall and 3–5 kg (7–11 lbs). They’re popular with apartment owners because they fit anywhere and make easy lap dogs.
Mini Cavapoos come from a Miniature Poodle parent and reach 28–35 cm (11–14 inches) and 5–8 kg (11–18 lbs). A lot of owners go for the Mini because it’s sturdier and keeps up better with an active household.
You’ll also see breeders advertising “Teacup Cavapoos” under 3 kg (7 lbs), but that isn’t a recognized size. Teacups often come from risky breeding practices and carry higher health risks, so stick with a Toy or Mini from a reputable breeder.
What Determines Cavapoo Size
The biggest factor is the Poodle parent. A Toy Poodle father produces smaller puppies than a Miniature Poodle father, so breeders can predict size reasonably well from the parents, even though individual puppies in a litter still vary.
Generation matters too. F1 Cavapoos (first-generation) tend to show more size variation than F1B Cavapoos, which carry more Poodle genetics and land closer to a predictable size.
Gender plays a smaller part. Males usually weigh a pound or two more than females at full size, and both sexes reach their adult height at about the same age.
How to Estimate Full-Grown Size
There’s a rough rule of thumb: a Cavapoo’s adult weight is usually 2 to 2.5 times its weight at 4 months. A 4-month-old at 5 kg (11 lbs) will probably land around 10–12.5 kg (22–27 lbs) full grown.
Checking the parents’ sizes and asking the breeder about past litters sharpens the estimate. Breeders who have raised a lot of Cavapoo litters know their lines and can call adult size with decent accuracy.
Even so, size can swing within a single litter, since it depends on which traits each puppy inherits. Don’t buy a puppy expecting an exact adult weight.
Cavapoo vs Similar Small Breeds
| Breed | Height | Weight | Type |
| Cavapoo | 23–35 cm | 3–8 kg | Hybrid |
| Cavalier KC Spaniel | 30–33 cm | 6–8 kg | Spaniel |
| Toy Poodle | 24–28 cm | 2–3 kg | Toy |
| Mini Poodle | 28–38 cm | 7–15 kg | Small |
| Cockapoo | 25–38 cm | 5–9 kg | Hybrid |
| Maltipoo | 20–35 cm | 2–7 kg | Hybrid |
Cavapoos sit in the middle of the doodle-hybrid range. They’re close to Cockapoos in size but a touch more compact than the average Cockapoo. The dog size chart and small breeds dog chart have more comparisons.
Keeping Your Cavapoo at a Healthy Weight
Cavapoos put on weight easily. They have small frames and they love food, which is a tricky combination. Keeping the weight in check supports their 12–15 year lifespan.
Feed a high-quality puppy food through the first 12 months, then move to a good small-breed adult formula. Measure portions and skip free-feeding. The Cavapoo food guide has feeding amounts by age and weight.
Exercise matters as much as the food. Cavapoos are playful and have more energy than their size suggests, so 30–60 minutes of daily activity keeps them trim. Walks, play, and a bit of training all count. A bored Cavapoo turns destructive; an active one tends to stay lean on its own.
Regular vet checkups catch weight creep early. If yours is gaining too fast, your vet can adjust portions before it becomes a real problem. The Cavapoo lifespan guide covers more on Cavapoo health.
Cavapoos Beyond Size
Size and temperament go hand in hand here. Toy or Mini, Cavapoos are gentle and affectionate, and that temperament is a big reason people pick the breed as a first dog.
Their calm nature and manageable size also make them good therapy dogs. Plenty of Cavapoos visit hospitals, nursing homes, and schools as comfort animals, which fits how people-oriented the breed is.
A full-grown Cavapoo usually has a curly or wavy coat that many people consider hypoallergenic. They tend to shed less than purebred dogs, which is part of the appeal for allergy-prone families. The Cavapoo hypoallergenic guide goes deeper, and the Cavapoo haircuts guide covers grooming.
Choosing the Right Cavapoo Size
Picking a size comes down to your lifestyle. A smaller Toy Cavapoo suits apartments and anyone who wants a true lap dog, and it travels easily.
A larger Mini works better for families with active kids or homes with more room. It handles roughhousing and longer walks without tiring out.
Whichever way you lean, ask the breeder what full-grown size to expect based on the parents. The Cavapoo price guide has more on finding a good breeder.
FAQs
How big do Cavapoos get?
Cavapoos reach 23–35 cm (9–14 inches) and 3–8 kg (7–18 lbs) full grown. Toy Cavapoos stay on the small side at 7–11 lbs, while Minis reach 11–18 lbs. The Poodle parent decides where a given dog lands.
When is a Cavapoo full grown?
Most Cavapoos hit full height by 10–12 months, then keep adding muscle and weight until 14–18 months. By a year old you’ll have a good read on your dog’s adult size.
How big will my Cavapoo get?
Double your puppy’s weight at 4 months for a rough estimate, then check the parents’ sizes to tighten it. Whether your dog ends up Toy or Mini depends on the Poodle parent.
Are Cavapoos considered small dogs?
Yes. Both Toy and Mini Cavapoos stay under 20 pounds as adults, which puts them squarely in the small-dog group. The toy dog breeds page lists similar small companions.
How much should a 6-month-old Cavapoo weigh?
A 6-month-old male Mini Cavapoo usually weighs 7.7–9.1 kg (17–20 lbs) and a female 6.4–7.3 kg (14–16 lbs). Toy Cavapoos weigh less than that.
Cavapoo vs Cockapoo: which is bigger?
Cockapoos run a little larger on average, up to about 9 kg (20 lbs), while Cavapoos top out near 8 kg (18 lbs). The two hybrids are otherwise close in size. See the Cavapoo family guide and the Cavapoo colors guide for more.