How old is a 17-year-old cat in human years?
A 17-year-old cat is about 84 in human years. That puts your cat in the super senior stage (15 years and over).
about 84 in human years
Super senior · 15 years and over Very old; comfort and regular check-ups come first.
What the super senior stage means
Many cats now live well into their late teens. Super seniors need comfort, routine and close attention to small changes, since several conditions can develop at once.
Care tips at this age
- Keep vet visits at least every six months, or more often if your cat has a long-term condition.
- Keep food, water, litter and a warm bed close together.
- Watch for weight loss and changes in behaviour; they are often the first sign of illness.
Cat age chart: cat years to human years
| Cat age | Human age | Life stage |
|---|---|---|
| 1 month | 1 | Kitten |
| 2 months | 2 | Kitten |
| 3 months | 4 | Kitten |
| 4 months | 6 | Kitten |
| 5 months | 8 | Kitten |
| 6 months | 10 | Kitten |
| 7 months | 12 | Junior |
| 1 year | 15 | Junior |
| 18 months | 21 | Junior |
| 2 years | 24 | Junior |
| 3 years | 28 | Adult |
| 4 years | 32 | Adult |
| 5 years | 36 | Adult |
| 6 years | 40 | Adult |
| 7 years | 44 | Mature |
| 8 years | 48 | Mature |
| 9 years | 52 | Mature |
| 10 years | 56 | Mature |
| 11 years | 60 | Senior |
| 12 years | 64 | Senior |
| 13 years | 68 | Senior |
| 14 years | 72 | Senior |
| 15 years | 76 | Super senior |
| 16 years | 80 | Super senior |
| 17 years | 84 | Super senior |
| 18 years | 88 | Super senior |
| 19 years | 92 | Super senior |
| 20 years | 96 | Super senior |
| 21 years | 100 | Super senior |
| 22 years | 104 | Super senior |
| 23 years | 108 | Super senior |
| 24 years | 112 | Super senior |
| 25 years | 116 | Super senior |
Frequently asked questions
How old is a 17-year-old cat in human years?
About 84. Cats count about 15 human years for the first year, 9 for the second, and about 4 for every year after that.
Is a 17-year-old cat old?
Yes, very. At about 84 in human years, a 17-year-old cat is a super senior.
How often should a 17-year-old cat see the vet?
At least every six months, as feline guidelines advise for senior cats, and more often if your cat has a long-term condition.