| Life Stages | Age of Cat | Human Equivalent | |
|---|---|---|---|
 |
Kitten birth to 6 months |
0-1 month 2-3 months 4 months 6 months |
0-1 year 2-3 years 6-8 years 10 years |
 |
Junior 7 months to 2 years |
7 months 12 months 18 months 2 years |
12 years 15 years 21 years 24 years |
 |
Prime 3 years to 6 years |
3 4 5 6 |
28 32 36 40 |
 |
Mature 7 years to 10 years |
7 8 9 10 |
44 48 52 56 |
 |
Senior 11 years to 14 years |
11 12 13 14 |
60 64 68 72 |
 |
Geriatric 15 years + |
15 16 17 18 19 20 21 22 23 24 25 |
76 80 84 88 92 96 100 104 108 112 116 |
| Credits: Facts from the Journal of Feline Medicine & Surgery. Photos from Animal General, by Karen Markham Design by Dia Media |
|||