Most important facts
- Group
- Toy
- Size
- Toy
- Weight
- 3.6–6.3 kg
- Lifespan
- 9–13 years
- Coat
- Long
- Energy
- Low
- Height
- 25–27 cm
- Colours
- Black and tan, ruby, Blenheim or tricolour
- Shedding
- Moderate
- Est. feeding cost
- ~£12/mo
- Gear to consider
- Slow-feeder bowl sized for toy breeds, soft harness to protect the neck and airway, soft-bristle brush or comb for the feathering
Typical dry food, adult
About the King Charles Spaniel
Toy spaniels warmed the laps of English royalty from Tudor times, and the breed takes its name from Charles II, who was rarely seen without his little dogs. Victorian fashion flattened the face and domed the skull, and that is the modern King Charles Spaniel. Breeders later recreated the older, longer-nosed type, so in 1945 the two were split and the recreation was named the Cavalier. The original is now much the rarer of the pair.
King Charles Spaniels are gentle and affectionate dogs, and generally quiet ones. Centuries of breeding shaped them as companions, not workers. They're typically calm indoors, fond of a settled routine, and form close bonds with their owners, often preferring to stay within reach. Early, gentle socialisation helps this naturally reserved breed stay confident.
Most King Charles Spaniels have hearty appetites, which makes reward-based training easy. It also means portion control matters from puppyhood, because this is a breed that will happily eat more than it needs. Because they can find being left alone difficult, build up short absences gradually, and keep the feeding routine predictable.
Common health conditions
Things King Charles Spaniel owners commonly watch for. Guidance, not veterinary advice.
Mitral valve disease
A progressive heart-valve condition common in this breed family. Keep your dog at a healthy weight to reduce strain on the heart, and keep up regular vet checks.
Chiari-like malformation and syringomyelia (CM/SM)
A neurological condition linked to the breed's domed skull, which can cause pain or scratching at the neck. Book a prompt vet visit for any such signs, and do not wait.
Patellar luxation
Kneecap dislocation is common in toy breeds. Keep body condition lean through measured feeding to take pressure off the joints.
Brachycephalic airway limitations
The shortened muzzle can restrict airflow, especially in warm weather or with excess weight. Keeping this breed slim genuinely helps it breathe more comfortably.
Feeding a King Charles Spaniel
As a small, flat-faced toy breed, the King Charles Spaniel does best on an appropriately energy-dense diet fed in small, measured meals, with two a day suiting an adult better than one large sitting. Kibble size matters too, as smaller, easy pieces suit a compact jaw, and softer textures help if dental crowding makes chewing less comfortable.
Weight management is the biggest feeding consideration for this breed. Excess weight strains joints already vulnerable to patellar luxation and makes breathing harder for a dog whose airway is already narrow. Feed to body condition rather than a fixed amount, resist a breed that begs persuasively, and keep treats to a small share of daily calories.
Every dog is different — weight, age and activity all shift what a King Charles Spaniel needs. The turns these breed tendencies into a shortlist matched to your dog’s age, size, budget and needs.
Typical adult weight
3.6–6.3 kg
Est. daily calories
220–390 kcal
A broad guide for an average-activity adult in good body condition — not veterinary advice. Real needs vary with age, neutering, activity, health and body condition, so no two King Charles Spaniels eat exactly the same. Get a personalised estimate or estimate feeding costs.
- Per day
- ~£0.40
- Per month
- ~£12
- Per year
- ~£147
A broad typical monthly budget guide, not a live price quote. Food format, calorie density, pack size and retailer pricing all change the real cost.
Find the right food for your King Charles Spaniel
Foods ranked to your dog
Answer a few quick questions and the Food Finder ranks foods to your King Charles Spaniel by score, price, life stage and fit.
Breed at a glance
- Exercise needs4/10
- Appetite8/10
- Trainability6/10
- Good with children6/10
- Shedding5/10
- Tolerates being alone3/10
The good & the worth-knowing
The good
- A gentle and affectionate companion, closely attached to its family
- Modest exercise needs suited to a calmer household
- Elegant, silky coat that's manageable with regular brushing
Worth knowing
- Prone to significant inherited health conditions, including heart and neurological disease
- Doesn't cope well with being left alone for long stretches
- Hearty appetite and low exercise needs make weight gain easy without careful portioning
Best matched accessories
All accessories →The collections that suit the breed, judged by the same independent standard.
Common owner questions
How much should I feed a King Charles Spaniel?
Start with the guideline on your chosen complete food for the dog's weight and life stage, then adjust to body condition. You should be able to feel, though not necessarily see, the ribs. Weigh meals rather than guessing, and use our Food Finder to match a food to their size and needs.
Are King Charles Spaniels prone to putting on weight?
Yes. They have hearty appetites paired with fairly modest exercise needs, a combination that makes weight gain easy. Regular weigh-ins, measured meals and keeping treats to a small share of daily calories all help.
How much exercise does a King Charles Spaniel need?
Around an hour a day, split into two shorter walks, suits most adults, along with gentle play and training at home. Because of the compact airway, keep exercise moderate and avoid hot weather.
Is the King Charles Spaniel the same as the Cavalier King Charles Spaniel?
No. The Kennel Club recognised them as two separate breeds in 1945. The King Charles Spaniel is smaller, with a more domed skull and shorter muzzle, while the Cavalier has a flatter skull and longer nose.