British Shorthair age in human years
The British Shorthair typically weighs 9–17 lb and lives 15–20 years. Like all cats, a British Shorthair is about 15 in human years at age one and 24 at two, then ages about four human years per year, so a 5-year-old British Shorthair is about 36.
Enter an age to see human years.
The default is the size-based vet chart. See how pet age is calculated.
British Shorthair facts
- Weight
- 9–17 lb
- Life expectancy
- 15–20 years
- Senior from
- About 10 years old
British Shorthair age in human years
| Cat age | Human years | Life stage |
|---|---|---|
| 1 year | 15 | Young adult |
| 2 years | 24 | Young adult |
| 3 years | 28 | Young adult |
| 4 years | 32 | Young adult |
| 5 years | 36 | Young adult |
| 6 years | 40 | Young adult |
| 7 years | 44 | Mature adult |
| 8 years | 48 | Mature adult |
| 9 years | 52 | Mature adult |
| 10 years | 56 | Senior |
| 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 |
| 18 years | 88 | Senior |
| 19 years | 92 | Senior |
| 20 years | 96 | Senior |
| 21 years | 100 | Senior |
| 22 years | 104 | Senior |
The default is the size-based vet chart. See how pet age is calculated.
Other cat breeds
FAQ
How old is a British Shorthair in human years?
The British Shorthair typically weighs 9–17 lb and lives 15–20 years. Like all cats, a British Shorthair is about 15 in human years at age one and 24 at two, then ages about four human years per year, so a 5-year-old British Shorthair is about 36.
How old is a 3-year-old British Shorthair in human years?
About 28, using the vet chart for cats. A 10-year-old British Shorthair is about 56.
What is the life expectancy of a British Shorthair?
Most live 15–20 years.
When is a British Shorthair considered a senior?
From about 10 years old, like all cats. That is about 56 in human years, and most British Shorthair cats live 15–20 years.