How Old Is Your Dog?

     The rule of thumb for determining the age of a dog compared to humans is usually one year for a dog equals 7 years for humans, but that is not a very accurate rule. Dogs mature more quickly than humans do, so the first year of a dog's life is equal to about 15 human years. Size and breed also play a role, but this chart should give you a good sense of where your dog is in the development/aging process.

DOG YEARS
6 months for a dog equals 10 years for a human
12 months for a dog equals 15 years for a human
24 months for a dog equals 24 years for a human

DOG   HUMAN
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  74.5
16  77
17  79.5
18  82
19  84.5
20  87
21  89.5
22  92
23  94.5
24  97
25  99.5
26  102
27  104.5
28  107
29  109.5
30  112