Geriatric cats: 15 years and older
A cat of 15 or more is geriatric — about 76 in human years at 15, 88 at 18 and 96 at 20. Reaching this stage is an achievement. The goals of care simplify to one word: comfort.
| Cat age | Human years |
|---|---|
| 15 years | 76 |
| 16 years | 80 |
| 18 years | 88 |
| 20 years | 96 |
| 22 years | 104 |
| 25 years | 116 |
What the geriatric stage is like
Very old cats sleep most of the day, move deliberately, and may lose some sharpness — occasional confusion, night-time vocalising, or staring are reported often at this age, alongside thinner body condition and a coat that needs help. Appetite can become picky. A geriatric cat is not necessarily an unwell cat, but the margin for “wait and see” is thinner than it used to be.
Care priorities
- Everything within easy reach. Food, water, litter and a warm bed on one level, ideally without stairs or jumps between them. A second litter box saves a long trip.
- Pain checks, honestly. Arthritis is extremely common in cats this age and badly under-treated because cats hide it. If mobility, grooming or mood has slipped, ask your vet specifically about pain.
- Help with grooming and claws. Stiff cats can’t reach their backs or retract claws fully; gentle brushing and regular claw trims prevent real discomfort.
- Keep vet visits regular but low-stress. Twice-yearly is still the usual rhythm; ask about carrier training, gabapentin before visits, or home visits if travel has become a genuine ordeal.
- Track quality of life, not just age. Appetite, comfort, interest in the household and good days versus bad days are the measures that matter now — and the basis for kind, timely decisions with your vet.
Before this stage: Senior (11–14 years). For how these ages sit against typical lifespans, see how long cats live.
Common questions
How old is a 20-year-old cat in human years?
About 96. A 20-year-old cat has outlived the large majority of cats and is deep into the geriatric stage.
Is it normal for a very old cat to sleep almost all day?
Largely, yes — geriatric cats may sleep 20 hours or more. What deserves a vet visit is a change: sleeping in new hiding places, skipping meals, or seeming uncomfortable rather than peacefully asleep.