how old is your cat in human years?
Enter your cat's age. We do the maths properly - not the times-seven myth.
how cat years actually work
The old "multiply by seven" rule is a dog thing, and it is wrong for dogs too. Cats mature fast and then coast: a one-year-old cat is roughly a 15-year-old human, a two-year-old is about 24, and every year after that adds around four human years. That is the convention used by veterinary bodies, and it is what this calculator uses.
| cat age | human years |
|---|---|
| 6 months | ~10 |
| 1 year | 15 |
| 2 years | 24 |
| 5 years | 36 |
| 10 years | 56 |
| 15 years | 76 |
| 20 years | 96 |
what the life stages mean
Kitten (under 1): chaos in its purest form. Junior (1-2): a teenager who owns nothing and judges everything. Prime (3-6): peak cat - fast, glossy, insufferably confident. Mature (7-10): the dignified middle years, mostly spent supervising. Senior (11-14): entitled to every sunbeam. Geriatric (15+): a living legend who has outlasted several of your furniture arrangements.
does indoor or outdoor matter?
For life expectancy, hugely - indoor cats commonly live 12-18 years, while outdoor life is riskier. The human-years conversion stays the same either way; it describes maturity, not prognosis. Whatever their age, they believe they are in charge, and they are correct.