Cavachon Life Expectancy and Age Calculator
A Cavalier King Charles Spaniel crossed with a Bichon Frise. Not a Royal Kennel Club breed, and not given its own median in the 2024 UK study.
How long do Cavachons live?
This site does not publish a breed-specific UK median lifespan for the Cavachon. There is no median for this cross in the UK veterinary study this site uses. McMillan and colleagues, Scientific Reports (1 February 2024), give medians for 155 recognised breeds and one pooled crossbred group. Supplementary Table 3 has a single row labelled Crossbreed. That row is every crossbred dog in the analysis together, not this cross on its own. Their median survival was 12.0 years (95% confidence interval 12.0 to 12.1; 111,053 dogs). The paper also says 95% of that crossbred group were dead by 18.2 years.
Among purebreds in the same study, large dogs had a shorter median (11.9 years) than small dogs (12.7). The authors describe body size as the strongest predictor of lifespan in dogs. They do not publish that size split for named crosses. A crossbreed's lifespan still tends to follow size, which is why the calculator below asks for adult weight rather than a breed name.
There is no Cavachon median in the 2024 UK study. The pooled crossbred median was 12.0 years, for all crosses together. Supplementary Table 3 gives 11.8 years for the Cavalier King Charles Spaniel (that row also includes the King Charles Spaniel) and 12.5 years for the Bichon Frise. Do not average 11.8 and 12.5 and call the result a Cavachon lifespan. The parent pages are Cavalier King Charles Spaniel and Bichon Frise.
The Royal Kennel Club Cavalier standard gives a weight of 5.4–8.2 kg. The Bichon Frise standard gives an ideal height of 23–28 cm and no weight.
Cavachon age in human years (small band)
| Dog years | Human years | Life stage |
|---|---|---|
| 1 | 15 | Adolescent |
| 2 | 24 | Adult |
| 3 | 28 | Adult |
| 6 | 40 | Adult |
| 7 | 44 | Adult |
| 10 | 56 | Senior begins |
| 13 | 68 | Senior |
| 15 | 76 | Geriatric |
This table is the small band, for an adult Cavachon under 9 kg. Figures are The Royal Kennel Club's published small-breed guidance, as tabulated by Purina UK. They are the same numbers as the widget when small is selected. Want months as well? Use a decimal age in the widget (for example 10.5).
Which size setting to use
5.4–8.2 kg is under this site's 9 kg line, so small is the honest default. Check the adult dog. A heavier Cavachon should use medium even though both parent pages use the small table.
- Small, under 9 kg. Senior from about 10 dog years (about 56 human years). Open the calculator on small, age 10.
- Medium, 9–23 kg. Senior from about 7 dog years (about 47 human years). Open the calculator on medium, age 7.
- Large, 23–41 kg. Senior from about 5 dog years (about 36 human years). Open the calculator on large, age 5.
- Giant, over 41 kg. Use the giant setting on the main calculator.
Those kilogram cuts are this site's size categories, not a weight the Royal Kennel Club publishes for Cavachons. A breed page for a parent can use a different band, because recognised breeds are classified by the Club's size groups rather than by your dog's scales.
Worked examples using this site's calculator
These are the same Royal Kennel Club small-breed figures the homepage uses. The classic ×7 rule is only a comparison. More on that in Is the ×7 rule real?
| Your Cavachon | RKC human years | ×7 rule | What that stage usually means |
|---|---|---|---|
| 3 years | 28 | 21 | Adult — ×7 understates the early years |
| 7 years | 44 | 49 | Still adult on the small-breed table |
| 10 years | 56 | 70 | Senior begins on the small-breed table |
| 13 years | 68 | 91 | Converting the years you have, not a forecast |
When is a Cavachon considered a senior?
A Cavachon under 9 kg is treated as senior from about 10 dog years on this site, about 56 human years. The Cavalier breed standard weight, 5.4–8.2 kg, sits in that small band, which is why the chart uses it. If your adult dog is 9 kg or over, senior starts at about 7. The senior signs page lists what to watch.
Gradual change is common. Sudden lameness, rapid weight loss, or a new lump is the point to read when to take your senior dog to the vet rather than wait for the next routine slot. The signs to watch are on signs your dog is a senior.
Insurers do not have to use the same senior line. Read pet insurance for older dogs if you are weighing cover. The two clocks do not have to match.
Year-by-year answers for 10 to 16 dog years, by size: 10 11 12 13 14 15 16.
Health
The Royal Kennel Club's Cavalier page says mitral valve disease is a common problem in older dogs of many breeds, and that it has an earlier onset in the Cavalier. That is a statement about Cavaliers, not a Cavachon rate.
Dogs Trust lists the Cavalier King Charles Spaniel among flat-faced breeds, and says crossbreeds with a shortened nose can also be affected by brachycephalic obstructive airway syndrome (BOAS). Many flat-faced dogs are not affected. This is not a claim that every Cavachon has a heart or breathing problem.
Common questions
How long do Cavachons live?
This site does not publish a breed-specific UK median lifespan for the Cavachon. There is no median for this cross in the UK veterinary study this site uses. McMillan and colleagues, Scientific Reports (1 February 2024), give medians for 155 recognised breeds and one pooled crossbred group. Supplementary Table 3 has a single row labelled Crossbreed. That row is every crossbred dog in the analysis together, not this cross on its own. Their median survival was 12.0 years (95% confidence interval 12.0 to 12.1; 111,053 dogs). The paper also says 95% of that crossbred group were dead by 18.2 years.
Among purebreds in the same study, large dogs had a shorter median (11.9 years) than small dogs (12.7). The authors describe body size as the strongest predictor of lifespan in dogs. They do not publish that size split for named crosses. A crossbreed's lifespan still tends to follow size, which is why the calculator below asks for adult weight rather than a breed name.
There is no Cavachon median in the 2024 UK study. The pooled crossbred median was 12.0 years, for all crosses together. Supplementary Table 3 gives 11.8 years for the Cavalier King Charles Spaniel (that row also includes the King Charles Spaniel) and 12.5 years for the Bichon Frise. Do not average 11.8 and 12.5 and call the result a Cavachon lifespan. The parent pages are Cavalier King Charles Spaniel and Bichon Frise.
The Royal Kennel Club Cavalier standard gives a weight of 5.4–8.2 kg. The Bichon Frise standard gives an ideal height of 23–28 cm and no weight.