Cat life stages by age
A cat is a senior from about age 11 (≈ 60 in human years) and geriatric from 15 — much later than most owners assume.
| Stage | Age / human equivalent |
|---|---|
| Kitten Growth and socialisation. Everything learned here sticks. | 0–6 months ≈ 0–10 human years |
| Junior Full size is reached, but behaviour is adolescent. | 7 months – 2 years ≈ 10–24 human years |
| Adult (prime) Physically at their peak. Annual check-ups are enough. | 3–6 years ≈ 28–40 human years |
| Mature The feline equivalent of middle age — watch weight and teeth. | 7–10 years ≈ 44–56 human years |
| Senior Twice-yearly vet visits; kidney and thyroid screening starts here. | 11–14 years ≈ 60–72 human years |
| Geriatric Comfort, mobility and hydration become the whole game. | 15+ years ≈ 76+ human years |