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 ageHuman years
15 years76
16 years80
18 years88
20 years96
22 years104
25 years116

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

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.