How big is a Cavapoo full grown?

8 to 25 pounds across every size this breed comes in, standing 9 to 14 inches at the shoulder. No registry recognizes this cross, so these are typical ranges rather than a standard.

How can I tell how big my Cavapoo puppy will get?

Weigh your puppy and enter its age in the calculator on this page. It is already set to the small growth curve for this breed, so it works backwards from where your puppy is now rather than from the breed average. Four to six months is when the estimate is most reliable.

How often does a Cavapoo need grooming?

A curly or doodle coat needs a groom every 4 to 6 weeks under published guidance. Over a year that adds up, and the grooming cost estimator works out what it comes to for a dog this size.

When does a Cavapoo stop growing?

Weight gain slows to almost nothing at around 10 months for a dog in the small size class. Height finishes earlier than weight in every breed.

At what age is a Cavapoo full grown?

Most Cavapoos are at or near their adult weight by ten months. Our figures put a dog of this size class at about 90 percent of adult weight by then, with the last tenth arriving slowly over the following months.

How big will my Cavapoo get if the parents were both small?

Parent weights are the single best clue you have. A rough guide used by breeders is that a puppy tends to land between its two parents, closer to the lighter one. Enter your puppy's age and weight in the calculator above for an estimate from its own growth so far.

Do Cavapoos need professional grooming?

Most do. A curly or wavy coat does not shed out on its own, so it mats without regular brushing and clipping. Published guidance puts a doodle-type coat on a four to six week grooming cycle.

Cavapoo full grown

A full grown Cavapoo usually weighs 8 to 25 pounds and stands 9 to 14 inches at the shoulder. Most reach their adult weight somewhere between nine and twelve months old. Where a particular Cavapoo lands in that range depends mostly on whether the Poodle parent was a Toy or a Miniature.

full grown, across every size: 8 to 25 lbfull grown, across every size
at the shoulder: 9 to 14 inat the shoulder
before growth slows to a crawl: 10 monthsbefore growth slows to a crawl

Cavapoo weight calculator

Answers update as you move the sliders.

Age16 weeks

Weight today8 lb

Expected adult size

Small: 14 to 20 lb as an adult.

SexOptional

Likely adult weight

16.1lb

8 in 10 land between: 12.9 to 21 lb
Fully grown: around 10 months

Size class: Small, 14 to 20 lb

Age in monthsSo farProjected

Fair. Four to five months is the usual time to make this estimate. It is reasonable now, but the range is still wide.

Estimate only. For health questions, ask your vet. Mixed breeds can land outside the range.

See the expected weight month by month

Age	Likely weight	Range
2 months	4.3 lb	2.5 to 7.7 lb
3 months	6.4 lb	3.8 to 10.7 lb
4 months	8.6 lb	5.4 to 13.9 lb
5 months	10.5 lb	6.7 to 16.5 lb
6 months	11.9 lb	7.7 to 18.5 lb
7 months	12.9 lb	8.5 to 20 lb
8 months	13.7 lb	9.1 to 21 lb
9 months	14.3 lb	9.6 to 21 lb
10 months	14.5 lb	9.8 to 21 lb
11 months	14.7 lb	9.9 to 22 lb
12 months	14.9 lb	10.1 to 22 lb
13 months	15 lb	10.4 to 22 lb
14 months	15.2 lb	10.6 to 22 lb
15 months	15.3 lb	10.8 to 22 lb
16 months	15.5 lb	10.9 to 22 lb
17 months	15.5 lb	10.9 to 22 lb
18 months	16 lb	12 to 22 lb

Scroll the table sideways to see every column.

Expected weight month by month, from the same estimate.

In short

Key takeaways

A full grown Cavapoo weighs 8 to 25 lb across all its sizes.
No kennel club recognizes the Cavapoo, so these are typical ranges built from the parent breeds and a veterinary publisher.
Most of the growing is done by about 10 months.
A curly or doodle coat means regular paid grooming, which is a real yearly cost.
The chart below shows a band, not a line, because individual dogs vary.

Adult size

Adult size and growth chart

Cavapoo

Small size class · Category II (6.5 to under 9 kg)

Typical range

adult weight: 8 to 25 lbadult weight
height at the shoulder: 9 to 14 inheight at the shoulder
most growing done by: 10 monthsmost growing done by

PetMD gives 8 to 25 pounds and 9 to 14 inches. The parent standards bracket that: a Cavalier King Charles Spaniel is 13 to 18 pounds, a Miniature Poodle 10 to 15 pounds and a Toy Poodle 4 to 6 pounds.

Cavapoo growth chart. Weight runs from about 2 to 7 pounds at 2 months, up to about 8 to 25 pounds at 18 months, for a full grown Cavapoo. — Estimated from the adult weight range above and the growth standard for the small size class. The band runs from the low end of the adult range to the high end.

See the Cavapoo weight by age as a table

Age	Low end	High end
2 months	2.2 lb	6.7 lb
3 months	3.2 lb	10 lb
4 months	4.3 lb	13.4 lb
5 months	5.2 lb	16.3 lb
6 months	5.9 lb	18.4 lb
7 months	6.4 lb	20 lb
8 months	6.8 lb	21.4 lb
9 months	7.1 lb	22.2 lb
10 months	7.2 lb	22.5 lb
11 months	7.3 lb	22.8 lb
12 months	7.4 lb	23.2 lb
15 months	7.6 lb	23.8 lb
18 months	8 lb	24.9 lb

Scroll the table sideways to see every column.

Timing

When a Cavapoo stops growing

10 months

before weekly weight gain drops below a quarter of a percent of adult weight

In our figures, a dog in the small size class has done almost all of its weight gain by about 10 months. After that the weekly gain drops below a quarter of a percent of adult weight, which is slow enough that you will not see it on the scales week to week.

Height finishes earlier than weight. The AKC puts small breeds at full size by 6 to 8 months, medium breeds at around 12 months, and giant breeds at 12 to 18 months, with some very large breeds taking up to 24.

10 months

before weekly weight gain drops below a quarter of a percent of adult weight

Variation

Why individual Cavapoos differ

A Cavapoo has no breed standard, because no kennel club recognizes it. There is no official weight for a Cavapoo in the way there is for a Cavalier King Charles Spaniel, so every figure on this page is a typical range rather than a rule.

The Poodle side does most of the work. A Cavapoo from a Toy Poodle tends to finish near the bottom of the range. One from a Miniature Poodle tends to finish near the top, and sometimes above it.

First-generation Cavapoos (one Cavalier parent, one Poodle parent) vary more than later generations, because each puppy draws a different mix from the two sides.

Running cost

Grooming a Cavapoo

A curly or doodle coat is a running cost, and it is worth knowing the figure before you take a puppy home rather than after. The price per groom goes up with the size of the dog.

Work out the cost

FAQ

Questions people ask

How big is a Cavapoo full grown?: 8 to 25 pounds across every size this breed comes in, standing 9 to 14 inches at the shoulder. No registry recognizes this cross, so these are typical ranges rather than a standard.
How can I tell how big my Cavapoo puppy will get?: Weigh your puppy and enter its age in the calculator on this page. It is already set to the small growth curve for this breed, so it works backwards from where your puppy is now rather than from the breed average. Four to six months is when the estimate is most reliable.
How often does a Cavapoo need grooming?: A curly or doodle coat needs a groom every 4 to 6 weeks under published guidance. Over a year that adds up, and the grooming cost estimator works out what it comes to for a dog this size.
When does a Cavapoo stop growing?: Weight gain slows to almost nothing at around 10 months for a dog in the small size class. Height finishes earlier than weight in every breed.
At what age is a Cavapoo full grown?: Most Cavapoos are at or near their adult weight by ten months. Our figures put a dog of this size class at about 90 percent of adult weight by then, with the last tenth arriving slowly over the following months.
How big will my Cavapoo get if the parents were both small?: Parent weights are the single best clue you have. A rough guide used by breeders is that a puppy tends to land between its two parents, closer to the lighter one. Enter your puppy's age and weight in the calculator above for an estimate from its own growth so far.
Do Cavapoos need professional grooming?: Most do. A curly or wavy coat does not shed out on its own, so it mats without regular brushing and clipping. Published guidance puts a doodle-type coat on a four to six week grooming cycle.

Method

How we calculate this

The adult weight and height come from the sources below. The shape of the growth chart comes from our own calculation on the open data behind a published veterinary growth standard, described on the how we calculate page. The charts are estimates built from a breed range and a population curve, not measurements of this breed.

Sources

7 sources behind the figures on this page.

Cavapoo
PetMD - read 2026-10-08
petmd.com
Cavalier King Charles Spaniel breed standard
American Kennel Club - read 2026-10-08
akc.org
Poodle (Toy) breed standard
American Kennel Club - read 2026-10-08
akc.org
Poodle (Miniature) breed standard
American Kennel Club - read 2026-10-08
akc.org
Growth standard charts for monitoring bodyweight in dogs of different sizes
Salt C, Morris PJ, German AJ, Wilson D, Lund EM, Cole TJ, Butterwick RF. PLoS ONE 12(9):e0182064 - dated 2017-09-06 - read 2026-10-08
Open access. Sets the adult-size categories and the growth standard method.
pmc.ncbi.nlm.nih.gov
Growth standard charts for monitoring bodyweight in dogs of different sizes - supporting data
University of Liverpool Data Catalogue - dated 2017-07-28 - read 2026-10-08
14,957,947 weight records from Banfield Pet Hospitals, 1994-2013, released under CC BY 4.0. Our growth curves are calculated from this file.
datacat.liverpool.ac.uk
When Does My Puppy Finish Growing?
American Kennel Club - read 2026-10-08
akc.org

Nearby

Keep going

Last reviewed October 10, 2026. Estimate only. For health questions, ask your vet.

Cavapoo full grown

Cavapoo weight calculator

Key takeaways

Adult size and growth chart

Cavapoo

When a Cavapoo stops growing

Why individual Cavapoos differ

Grooming a Cavapoo

Questions people ask

How we calculate this

Puppy weight calculator

Breed growth charts

Pregnancy calculator

Cavapoo weight calculator

Key takeaways

Adult size and growth chart

Cavapoo

When a Cavapoo stops growing

Why individual Cavapoos differ

Grooming a Cavapoo

Questions people ask

How we calculate this

Related breeds

Tools you might want next

Puppy weight calculator

Breed growth charts

Pregnancy calculator