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Cavachon full grown

A full grown Cavachon typically weighs 12 to 20 pounds and stands 10 to 13 inches at the shoulder. Both parents are small and close in size, which makes this one of the more predictable crosses: a Cavalier King Charles Spaniel is 13 to 18 pounds and a Bichon Frise 12 to 18.

full grown, across every size
12 to 20 lbfull grown, across every size
at the shoulder
10 to 13 inat the shoulder
before growth slows to a crawl
10 monthsbefore growth slows to a crawl

Cavachon weight calculator

Answers update as you move the sliders.

Age unit
Weight unit
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

2Now4681012Adult
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
AgeLikely weightRange
2 months4.3 lb2.5 to 7.7 lb
3 months6.4 lb3.8 to 10.7 lb
4 months8.6 lb5.4 to 13.9 lb
5 months10.5 lb6.7 to 16.5 lb
6 months11.9 lb7.7 to 18.5 lb
7 months12.9 lb8.5 to 20 lb
8 months13.7 lb9.1 to 21 lb
9 months14.3 lb9.6 to 21 lb
10 months14.5 lb9.8 to 21 lb
11 months14.7 lb9.9 to 22 lb
12 months14.9 lb10.1 to 22 lb
13 months15 lb10.4 to 22 lb
14 months15.2 lb10.6 to 22 lb
15 months15.3 lb10.8 to 22 lb
16 months15.5 lb10.9 to 22 lb
17 months15.5 lb10.9 to 22 lb
18 months16 lb12 to 22 lb

Scroll the table sideways to see every column.

Expected weight month by month, from the same estimate.

In short

Key takeaways

  1. A full grown Cavachon weighs 12 to 20 lb across all its sizes.
  2. No kennel club recognizes the Cavachon, so these are typical ranges built from the parent breeds and a veterinary publisher.
  3. Most of the growing is done by about 10 months.
  4. A curly or doodle coat means regular paid grooming, which is a real yearly cost.
  5. The chart below shows a band, not a line, because individual dogs vary.

Adult size

Adult size and growth chart

Cavachon

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

Typical range
adult weight
12 to 20 lbadult weight
height at the shoulder
10 to 13 inheight at the shoulder
most growing done by
10 monthsmost growing done by

Built from the two parent standards. Hepper reports a wider 15 to 35 pounds at 12 to 13 inches; we show the narrower range the parent standards support and flag the difference.

Cavachon growth chart. Weight runs from about 3 to 5 pounds at 2 months, up to about 12 to 20 pounds at 18 months, for a full grown Cavachon.
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 Cavachon weight by age as a table
AgeLow endHigh end
2 months3.2 lb5.4 lb
3 months4.8 lb8 lb
4 months6.4 lb10.7 lb
5 months7.8 lb13 lb
6 months8.9 lb14.8 lb
7 months9.6 lb16 lb
8 months10.3 lb17.1 lb
9 months10.6 lb17.7 lb
10 months10.8 lb18 lb
11 months11 lb18.3 lb
12 months11.1 lb18.5 lb
15 months11.4 lb19 lb
18 months11.9 lb19.9 lb

Scroll the table sideways to see every column.

Timing

When a Cavachon stops growing

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 Cavachons differ

Published figures for the Cavachon disagree. Hepper puts it at 15 to 35 pounds, which is heavier than either parent breed at the top end. The parent standards bracket the dog at 12 to 20 pounds, and that is the range we use.

Because both parents sit within a few pounds of each other, a Cavachon varies less than most crosses. There is no Toy or Standard version.

The coat usually takes after the Bichon side: soft, slow-shedding and in need of regular clipping.

Running cost

Grooming a Cavachon

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 Cavachon full grown?
12 to 20 pounds across every size this breed comes in, standing 10 to 13 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 Cavachon 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 Cavachon 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 Cavachon 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.
How big is a Cavachon full grown?
Typically 12 to 20 pounds at 10 to 13 inches. Sources disagree about the top of the range, so your own puppy's growth so far is the better guide.
When is a Cavachon fully grown?
Around ten months. Small dogs reach most of their adult weight well before a year.
Is a Cavachon the same as a Cavapoo?
No. A Cavachon crosses a Cavalier with a Bichon Frise, and a Cavapoo crosses a Cavalier with a Poodle. The Cavapoo has the wider size range of the two, because Poodles come in three sizes.

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

6 sources behind the figures on this page.

  • Cavalier King Charles Spaniel breed standard

    American Kennel Club - read 2026-10-08

    akc.org

  • Bichon Frise breed standard

    American Kennel Club - read 2026-10-08

    akc.org

  • Cavachon

    Hepper - dated 2026-06-11 - read 2026-10-08

    articles.hepper.com

  • 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

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