
🐶 Dog · size Small
Jack Russell Terrier
Small dog breed with unique character.
Photo · Lilly M (CC BY-SA 3.0)

Weight
5–8 kg
Size
Small
Lifespan
12–15 ans
Energy
Élevé
Origin
Angleterre
Coat
Predominantly white, with brown or black markings.
Maintenance
Moyen
Training
Moyen
The Jack Russell Terrier (JRT), or Jack Russell, is a small dog breed belonging to the Terrier group and originally intended for hunting. It owes its name to Reverend John Russell, nicknamed Jack, who became known as a breeder of a renowned line of Fox Terriers from Devonshire, England, during the second half of the 19th century. This dog is often adopted by riders and hunters due to its lively temperament and great speed.
Compatibility
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 (5–8 kg), adapts to most housing.
- 2Average lifespan: 12 to 15 years, depending on maintenance and diet.
- 3High energy level — at least 1 hour of daily activity for their balance.
- 4Moderate maintenance — weekly brushing is sufficient.
Chapter 1
Getting to know the Jack Russell Terrier
Our selection
Dry food suited to the Jack Russell Terrier
Origins & history
A story told
Reverend John Russell (1795-1883) was passionate about fox hunting and dog breeding. He obtained his first terrier in 1819, named "Trump"; it is believed to be the source of his terrier line. Tracing foxes in galleries requires fine and tenacious dogs. The Reverend Russell selected suitable subjects, both in terms of physique and character. He performed many crosses with other utility terrier breeds with solid or mixed coats. Over a few decades, he gave rise to the line that bears his name. John Russell ensured he preserved the original character of his Fox Terrier line: breeding was exclusively aimed at hunting. The terrier we know today, like the Jack Russell Terrier, presents strong similarities with the Fox Terrier before 1900. In 1873, John Russell was one of the founding members of the English Kennel Club. In 1874, he was an official judge for the recognition of the first Fox Terrier recognized by the Kennel Club. He always refrained from presenting his own dogs, the Russell Terriers, for recognition. Beauty trials encouraged breeders to move away from functional characteristics in favor of aesthetics. In 1898, Francis Barraud's canvas, titled His Master's Voice, immortalizes the famous Jack Russell Nipper. The English Kennel Club recognized the breed in 1990 and published an interim standard under the name of "Parson Jack Russell Terrier". The standard favors large sizes while the majority of European, Australian, and American dogs are small. The International Cynological Federation (FCI), to which Great Britain does not belong, accepts the English standard, including small sizes. This interim standard lasts 11 years. It then becomes obsolete: it gives ideal heights of 33 and 35 cm, but accepts small dogs up to 26 cm. The Jack Russell Terrier, measuring 25 to 30 cm at the withers, is distinguished from the Parson Russell Terrier, measuring 31 to 40 cm.
Character
Daily temperament
The Jack Russell is a proud, bold and energetic dog. Faithful and intelligent, its first quality is its capacity for work, followed by qualities of companion, affectionate and friendly. Its independent character can give you a hard time. It gets along well with children who know how to behave with it. City life, apartment living, or a peaceful setting is little suited to the Jack Russell's natural inclinations. These dogs adapt to any environment, but they were raised as hunting dogs. They need physical exertion and exploration, movement and human companionship. They require physical exercise, opportunities to display their intelligence and human contact.
Physical
Breed standard
In Jack Russell breeding, the characteristics sought all refer to fox hunting: its color, its constitution, its character and its intelligence. The body is compact, proportioned, with well-formed shoulders, straight legs, and a tight chest (which should be easily grasped in two hands of normal size, on the widest part, behind the shoulders). The Jack Russell must have great flexibility, to have freedom of movement underground and to track its prey in the narrowest galleries.
Chapter 2
Daily life
What if you adopted your future companion?
The Jack Russell Terrier of your dreams may already be waiting in a shelter. Hundreds of jack russell 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 jack russell terrier ?
The calculator is already set to the breed's adult size (espérance de vie 12–15 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.
Health
Health watch
The Jack Russell Terrier has an average life expectancy of between 13 and 16 years.
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 jack russell terrier ?
Estimate based on the veterinary formula RER × DER, adjusted for dog. Adjust according to package recommendations.
Result
105 g
per day · 399 kcal
53 g / repas (2 par jour)
Calculation for food of 380 kcal/100g.
Maintenance
Daily care
This terrier is easy to maintain. The smooth hair that falls each month should be removed with a rubber brush (it loses its hair throughout the year in very large quantities). The hard-haired type should be plucked from time to time. Its coat is semi-waterproof, easy to clean in case of rain or mud. It is not recommended to wash it often.
Appears in
Jack Russell Terrier in our rankings
FAQ
Frequently asked questions about Jack Russell Terrier
Is the Jack Russell Terrier suitable for apartment living?+
How much exercise per day does a Jack Russell Terrier need?+
What is the lifespan of a Jack Russell Terrier?+
Is the Jack Russell Terrier good with children?+
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For more information
Sources & official links
Supplementary documentation on reference sites — breed clubs, encyclopedias, veterinarians.
The right score for your Jack Russell Terrier.
SokoScan calculates a personalized PawScore based on breed, age, weight and your pet's sensitivities. Free, instant.