Jack Russell Terrier age in human years
The Jack Russell Terrier is a small breed weighing 13–17 lb, with a typical life expectancy of 13–15 years. On the size-based vet chart, a 5-year-old Jack Russell Terrier is about 36 in human years, and the breed is usually considered senior from around 10½ years old. It belongs to the Terrier group.
Enter an age to see human years.
The default is the size-based vet chart. See how pet age is calculated.
Jack Russell Terrier facts
- Size
- Small (20 lb or less)
- Weight
- 13–17 lb
- Life expectancy
- 13–15 years
- Senior from
- About 10½ years old
- Breed group
- Terrier
Jack Russell Terrier age in human years
| Dog age | Small | Life stage |
|---|---|---|
| 1 year | 15 | Young adult |
| 2 years | 24 | Young adult |
| 3 years | 28 | Mature adult |
| 4 years | 32 | Mature adult |
| 5 years | 36 | Mature adult |
| 6 years | 40 | Mature adult |
| 7 years | 44 | Mature adult |
| 8 years | 48 | Mature adult |
| 9 years | 52 | Mature adult |
| 10 years | 56 | Mature adult |
| 11 years | 60 | Senior |
| 12 years | 64 | Senior |
| 13 years | 68 | Senior |
| 14 years | 72 | Senior |
| 15 years | 76 | Senior |
| 16 years | 80 | Senior |
| 17 years | 84 | Senior |
The default is the size-based vet chart. See how pet age is calculated.
Other small dog breeds
FAQ
How old is a Jack Russell Terrier in human years?
The Jack Russell Terrier is a small breed weighing 13–17 lb, with a typical life expectancy of 13–15 years. On the size-based vet chart, a 5-year-old Jack Russell Terrier is about 36 in human years, and the breed is usually considered senior from around 10½ years old. It belongs to the Terrier group.
How old is a 3-year-old Jack Russell Terrier in human years?
About 28, using the vet chart for small dogs. A 10-year-old Jack Russell Terrier is about 56.
What is the life expectancy of a Jack Russell Terrier?
Most live 13–15 years.
When is a Jack Russell Terrier considered a senior?
From around 10½ years old, the last quarter of its expected lifespan. That is about 58 in human years.