Cavalier King Charles Spaniel

Cavalier King Charles Spaniels are one of the better choices for a family with children. Expect a small dog that is moderately active, sheds a normal amount and needs regular brushing. The big catch is company: this breed genuinely struggles when the house is empty all day.
The numbers
| Height | 12–13 in |
|---|---|
| Weight | 13–18 lb |
| Life expectancy | 12–15 years |
Source: American Kennel Club breed standard.
What Cavalier King Charles Spaniels are actually like
Cavaliers are named for King Charles II, who was so devoted to his toy spaniels that they were reportedly allowed anywhere in the palace. The modern breed was recreated in the 1920s to look like the dogs in Restoration paintings. Temperamentally they are close to ideal for a family: soft, affectionate, adaptable to both a walk in the hills and an afternoon on a lap, and one of the least aggressive breeds recognised. That makes what follows harder to say. Cavaliers have a very high incidence of mitral valve disease, a progressive heart condition that affects a large majority by around ten years old, plus a painful neurological condition called syringomyelia. Ask about heart-screened parents, and budget for cardiac care.
Day to day. Moderately active — a proper daily walk plus some play in the garden or the hallway keeps this breed happy. On noise, it is quiet.
The coat, honestly. This breed sheds a normal amount and needs regular brushing. A brush a few times a week and the occasional tidy-up keeps it in good order.
Being left alone. Struggles on its own. If your house is empty from the school run until the evening, this is the breed most likely to be unhappy about it — and separation problems are one of the top reasons dogs end up back in rescue.
Training. Eager and easy to train. That makes it a forgiving choice for a family training their first dog, as long as everyone is consistent.
Get one if…
- You want a dog with a reputation for putting up with children
- You are short on space and want a dog that fits your home
- This is your first dog and you want one that makes training feel possible
Think again if…
- Your house is empty from the morning drop-off until the evening
- A surprise vet bill would be a real problem this year
Health worth knowing about
Every animal is an individual, and plenty of Cavalier King Charles Spaniels live long, healthy lives. This is here so nobody is surprised — ask a vet, and ask whoever you get the dog from what they have tested for.
What it costs to keep one
Rough running cost: $$$ (one of the pricier dogs on our list) — because the breed has known health issues that can mean extra vet visits.
Those are relative bands, not live prices. For real numbers across every pet we cover, see the pet cost study and the cost calculator.
Looking for one? Start at a shelter
Rescues do have Cavalier King Charles Spaniels and Cavalier King Charles Spaniel crosses, usually adults whose size, coat and temperament you can see rather than guess at.
Often compared with
❓ Common questions about Cavalier King Charles Spaniels
Is a Cavalier King Charles Spaniel good with kids?
Yes — Cavalier King Charles Spaniels have a strong reputation with children. As with any animal, an adult should supervise young kids and the dog together, and children need to learn to leave it alone while it eats or sleeps.
Do Cavalier King Charles Spaniels shed a lot?
A normal amount. Regular brushing keeps most of it off your furniture.
Can a Cavalier King Charles Spaniel be left alone during the day?
Not really. This is one of the breeds most likely to become distressed alone all day, and separation problems are a common reason dogs are given up.
Is a Cavalier King Charles Spaniel a good first dog?
It is one of the more forgiving choices. Easy to train and tolerant with families — the usual caveats about exercise and grooming still apply.
Should I get a Cavalier King Charles Spaniel?
Cavalier King Charles Spaniels suit a home that keeps to a routine, is rarely empty, and is not fussy about coat care. Meet the dog itself before deciding. Get one if: You want a dog with a reputation for putting up with children; You are short on space and want a dog that fits your home; This is your first dog and you want one that makes training feel possible. Think again if: Your house is empty from the morning drop-off until the evening; A surprise vet bill would be a real problem this year.
📚 Where this comes from
We check our care advice against vets, animal charities, and government health guidance. Here is what this page is built on.
Vets, charities & official guidance
- Breed standards & vital statistics — American Kennel Club
- Preventing dog bites — AVMA
- Brachycephalic dogs policy — British Veterinary Association
- Puppy socialization position statement — AVSAB
- People foods to avoid feeding your pets — ASPCA
- Spaying and neutering — AVMA
Keeper & species-community guides
Checked August 2026. These are other people’s websites, and none of it replaces your own vet — if a pet seems unwell, call one.