Biological Aging of Dogs & Cats

Canine/Feline
 
3 months
6 months
1 year
2 years
3 years
4 years
5 years
6 years
7 years
8 years
9 years
10 years
12 years
14 years
16 years
18 years
20 years
21 years

Human
 
5 years
10 years
15 years
24 years
28 years
32 years
36 years
40 years
44 years
48 years
52 years
56 years
64 years
72 years
81 years
91 years
101 years
106 years