Cat age calculator
How old your cat is in human years.
Enter an age to see your cat in human years.
Your cat is about
in human years
Life stage
Next birthday
An estimate. Published charts vary.
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Cat years to human years
About, by the same published charts as the calculator, rounded to whole years.
| Age | Human years |
|---|---|
| 1 | 15 |
| 2 | 24 |
| 3 | 28 |
| 4 | 32 |
| 5 | 36 |
| 6 | 40 |
| 7 | 44 |
| 8 | 48 |
| 9 | 52 |
| 10 | 56 |
| 11 | 60 |
| 12 | 64 |
| 13 | 68 |
| 14 | 72 |
| 15 | 76 |
| 16 | 80 |
| 17 | 84 |
| 18 | 88 |
| 19 | 92 |
| 20 | 96 |
Other popular tools
For the next birthday
How we estimate
A cat's first two years count as about 24 human years (15 at one year), and each year after as about 4.
Life stages follow the 2021 AAHA and AAFP feline guidelines.
An estimate. Published charts vary.
Sources
- International Cat Care, "How to tell your cat's age in human years"
- 2021 AAHA/AAFP Feline Life Stage Guidelines
Questions
Is one cat year seven human years?
Not quite. A cat reaches about 15 human years in its first year and about 24 by two, then about 4 human years for each year after.
When is a cat a senior?
Over 10 years, in the 2021 feline life stage guidelines. From 7 to 10 a cat is a mature adult.
Is there one for dogs?
Yes, the dog age calculator, which also asks for size.
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