🐱 Cat Age Calculator
Convert cat years to human years
Life Stages
Kitten
0-1 yr
Junior
1-2 yr
Prime Adult
2-6 yr
Mature Adult
7-10 yr
Senior
11-14 yr
Geriatric
15+ yr
Age Conversion Table
| Cat Years | Human Years | Life Stage |
|---|---|---|
| 1 | 15 | Junior |
| 2 | 24 | Prime Adult |
| 3 | 28 | Prime Adult |
| 4 | 32 | Prime Adult |
| 5 | 36 | Prime Adult |
| 6 | 40 | Prime Adult |
| 7 | 44 | Mature Adult |
| 8 | 48 | Mature Adult |
| 9 | 52 | Mature Adult |
| 10 | 56 | Mature Adult |
| 11 | 60 | Senior |
| 12 | 64 | Senior |
| 13 | 68 | Senior |
| 14 | 72 | Senior |
| 15 | 76 | Geriatric |
| 16 | 80 | Geriatric |
| 17 | 84 | Geriatric |
| 18 | 88 | Geriatric |
| 19 | 92 | Geriatric |
| 20 | 96 | Geriatric |
Formula: First year = 15 human years, second year = 9, each additional year = 4. Life stages based on AAFP/AAHA guidelines.
How to Use Cat Age Calculator
- 1Enter your cat's age in years and months.
- 2Choose whether your cat is indoor-only or outdoor.
- 3View the equivalent human age and current life stage.
About Cat Age Calculator
Accurately convert your cat's age to human years with our cat age calculator. Understand your feline's life stage—kitten, adult, or senior—using veterinary-backed aging formulas.
Frequently Asked Questions
How fast do cats age in human years?
A one-year-old cat is roughly 15 in human years. By age two they're about 24, then each additional year adds around four human years.
Do indoor cats age differently?
Indoor cats generally live longer and may age slightly slower due to fewer environmental risks, though the biological aging curve is similar.