🐶 Dog · size Small
Sealyham Terrier
dog breed
Photo · Wikipedia FR (CC BY-SA)
Weight
7.65–10.35 kg
Size
Small
Lifespan
12–16 ans
Energy
Élevé
Origin
Pays de Galles
Coat
Uniformly white in color or with lemon, brown, blue or badger markings on the head
Maintenance
Moyen
Training
Moyen
The Sealyham Terrier is a dog breed originating from Wales and belonging to the Terrier group.
Profile
At a glance
Energy
Élevé
Trainability
Modéré
Maintenance
Modéré
Indicative profile — every animal is an individual.
⚡ Key facts in 30 seconds
L'essentiel
- 1Small size (7.65–10.35 kg), adapts to most living spaces.
- 2Life expectancy: 12 to 16 years on average, depending on maintenance and diet.
- 3High energy level — at least 1 hour of activity per day for its wellbeing.
- 4Moderate maintenance — weekly brushing is sufficient.
Chapter 1
Getting to know the Sealyham Terrier
Our selection
Dry food suited to the Sealyham Terrier
Origins & history
A story told
The Sealyham Terrier derives its name from Sealyham, Haverfordwest (Wales), where Captain John Edwardes' estate was located. He was selecting a variety of dog recognized for its predisposition to hunting small game. He crossed Dandie Dinmont Terriers with English White Terriers (a variety now extinct), Fox Terriers, West Highland White Terriers and Corgis, then tested the hunting qualities of dogs from these crosses, eliminating subjects that did not suit him. The Sealyham became a fashionable dog in Hollywood. Alfred Hitchcock, Jean Harlow, Cary Grant and Elizabeth Taylor owned one, as did Princess Margaret. The breed was very common in England, but its popularity declined with the prohibition of badger hunting. The Sealyham thus became a companion dog and its use for hunting is now anecdotal. The first Club du Sealyham Terrier was created in 1908 and the breed officially recognized in 1910. The Sealyham Terrier is now recognized by major kennel clubs. Once one of the most popular terriers and the most well-known dog breed in Wales, the Sealyham is now listed by the Kennel Club as one of the most endangered native breeds. A Sealyham Terrier, Champion Efbe's Hidalgo At Goodspice, won Best In Show at the Crufts dog show in 2009.
Character
Daily temperament
Vigorous, full of spirit and apt for work, it is lively and fearless but of a friendly nature. Sealyham puppies are ordinarily very active. With age, the Sealyham tends to become lazier and displays an even temperament and very relaxed behaviour. Therefore, it is necessary to watch their weight by managing their diet and giving them some exercise, at minimum a daily walk.
Physical
Breed standard
Overall, it has a body longer than tall and not square. Free in movement, active and well-proportioned, it has plenty of substance in a small volume. The body is of medium length and supple, the back horizontal, the chest broad and high, well descended between the forelegs and the ribs well-sprung. The height at the withers must not exceed 31 cm (12 inches). The ideal weight is approximately 9 kg (20 pounds) for males and approximately 8.2 kg (18 pounds) for females. The general conformation, balance of form, type and substance are essential criteria.
Chapter 2
Daily life
What if you adopted your future companion?
The Sealyham Terrier of your dreams may already be waiting in a shelter. Hundreds of sealyham terrier (and equally wonderful crossbreeds) are looking for a family in France — every adoption starts a new story.
Editorial recommendation — no affiliate links.
Âge
What human age for a sealyham terrier ?
The calculator is already set to the breed's adult size (espérance de vie 12–16 ans). Drag the slider to see the equivalence and corresponding life stage.
5 à 9 kg — a giant dog ages significantly faster than a small dog after maturity.
Equivalent human age
28years
Adulte
Most stable period. Monthly weigh-in, annual vet visit, dental care — this determines quality of life in later years.
Method: AVMA table: 15 human years in year one, +9 in year two, then +4 per year for a petit dog.
These equivalences are statistical benchmarks drawn from published veterinary tables. Every animal ages at its own pace, depending on genetics, diet and care. This calculator is neither a diagnosis nor veterinary advice.
Alert
To avoid for dog
Our database lists toxic ingredients and problematic additives by species.
- low-fat cocoa powderModerate
- maltitolModerate
- cocoa pasteModerate
- onion piecesModerate
Calculator · daily ration
How much to give a sealyham terrier ?
Estimate based on the veterinary formula RER × DER, adjusted for dog. Adjust according to package recommendations.
Result
134 g
per day · 509 kcal
67 g / repas (2 par jour)
Calculation for food of 380 kcal/100g.
Maintenance
Daily care
The Sealyham's coat must be groomed by "stripping", so as to prevent it from becoming too soft.
FAQ
Frequently asked questions about Sealyham Terrier
Is the Sealyham Terrier suitable for apartment living?+
How much exercise per day for a Sealyham Terrier?+
What is the life expectancy of a Sealyham Terrier?+
Is the Sealyham Terrier good with children?+
If you like this dog
Breeds with similar profiles
For more information
Sources & official links
Supplementary documentation on reference sites — breed clubs, encyclopedias, veterinarians.
The right score for your Sealyham Terrier.
SokoScan calculates a personalized PawScore based on breed, age, weight and your pet's sensitivities. Free, instant.