Bullmastiff age in human years
The Bullmastiff is a giant breed weighing 100–130 lb, with a typical life expectancy of 7–9 years. On the size-based vet chart, a 5-year-old Bullmastiff is about 45 in human years, and the breed is usually considered senior from around 6 years old. It belongs to the Working group.
Enter an age to see human years.
The default is the size-based vet chart. See how pet age is calculated.
Bullmastiff facts
- Size
- Giant (over 100 lb)
- Weight
- 100–130 lb
- Life expectancy
- 7–9 years
- Senior from
- About 6 years old
- Breed group
- Working
Bullmastiff age in human years
| Dog age | Giant | Life stage |
|---|---|---|
| 1 year | 12 | Puppy |
| 2 years | 22 | Young adult |
| 3 years | 31 | Mature adult |
| 4 years | 38 | Mature adult |
| 5 years | 45 | Mature adult |
| 6 years | 49 | Senior |
| 7 years | 56 | Senior |
| 8 years | 64 | Senior |
| 9 years | 71 | Senior |
| 10 years | 79 | Senior |
| 11 years | 86 | Senior |
The default is the size-based vet chart. See how pet age is calculated.
Other giant dog breeds
FAQ
How old is a Bullmastiff in human years?
The Bullmastiff is a giant breed weighing 100–130 lb, with a typical life expectancy of 7–9 years. On the size-based vet chart, a 5-year-old Bullmastiff is about 45 in human years, and the breed is usually considered senior from around 6 years old. It belongs to the Working group.
How old is a 3-year-old Bullmastiff in human years?
About 31, using the vet chart for giant dogs. A 9-year-old Bullmastiff is about 71.
What is the life expectancy of a Bullmastiff?
Most live 7–9 years.
When is a Bullmastiff considered a senior?
From around 6 years old, the last quarter of its expected lifespan. That is about 49 in human years.