Free tool
Cat age in human years
How old is your cat in human terms, and is it a senior yet? A conversion based on the International Cat Care chart.
Age in human years
–years
Chart: cat years to human years
| Cat's age | Human years | Life stage |
|---|---|---|
| 3 months | 4 | kitten |
| 6 months | 10 | kitten |
| 1 year | 15 | junior |
| 2 years | 24 | junior |
| 4 years | 32 | adult |
| 6 years | 40 | adult |
| 10 years | 56 | mature |
| 12 years | 64 | senior |
| 15 years | 76 | super senior |
| 18 years | 88 | super senior |
Frequently asked questions
How old is my cat in human years?
A one-year-old cat is roughly a 15-year-old human, and a two-year-old cat about 24. Each year after that adds about 4 human years, so a 10-year-old cat is about 56 in human years.
At what age is a cat a senior?
According to International Cat Care, a cat is a senior from 11 years and a super senior from 15. From about 7 years (the "mature" stage) it is worth doing yearly blood and urine tests.
How long do indoor cats live?
Many domestic cats live to 15 or older, and the International Cat Care chart goes up to a cat age of 25. Lifespan depends on genes, weight, regular veterinary care and whether the cat goes outdoors. You will find typical ranges for each breed in the encyclopedia.
Is one cat year 7 human years?
No. Cats mature very quickly in their first two years and then age at about 4 human years per year.
Sources
- 1International Cat Care – How to tell your cat's age in human yearsicatcare.org
- 22021 AAHA/AAFP Feline Life Stage Guidelines (catvets.com)catvets.com
Results are estimates and do not replace advice from a veterinarian.
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