Border Terrier age in human years
The Border Terrier is a small breed weighing 11–15 lb, with a typical life expectancy of 12–15 years. On the size-based vet chart, a 5-year-old Border Terrier is about 36 in human years, and the breed is usually considered senior from around 10 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.
Border Terrier facts
- Size
- Small (20 lb or less)
- Weight
- 11–15 lb
- Life expectancy
- 12–15 years
- Senior from
- About 10 years old
- Breed group
- Terrier
Border 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 Border Terrier in human years?
The Border Terrier is a small breed weighing 11–15 lb, with a typical life expectancy of 12–15 years. On the size-based vet chart, a 5-year-old Border Terrier is about 36 in human years, and the breed is usually considered senior from around 10 years old. It belongs to the Terrier group.
How old is a 3-year-old Border Terrier in human years?
About 28, using the vet chart for small dogs. A 10-year-old Border Terrier is about 56.
What is the life expectancy of a Border Terrier?
Most live 12–15 years.
When is a Border Terrier considered a senior?
From around 10 years old, the last quarter of its expected lifespan. That is about 57 in human years.