How old is an 18-year-old cat in human years?
An 18-year-old cat is about 88 in human years, which makes them a senior.
At 18 years, a cat is
88 human years
Vet chart (by size)
Senior
Other methods: The ×7 rule: 126
The default is the size-based vet chart. See how pet age is calculated.
Cat ages around 18
| Cat age | Human years | Life stage |
|---|---|---|
| 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 |
The default is the size-based vet chart. See how pet age is calculated.
18-year-old cat by breed
FAQ
How old is an 18-year-old cat in human years?
An 18-year-old cat is about 88 in human years, which makes them a senior.
Is an 18-year-old cat old?
An 18-year-old cat is a senior. Cats are considered seniors from 10 years old.
How old is an 18-year-old cat with the ×7 rule?
126, compared with 88 on the vet chart. The ×7 rule is a myth: pets age fast in their first two years and more slowly after that.