[Yorkie3]

I found this somewhere....

Lifespan

The old rule-of-thumb that one dog year equals seven years of a human life is not precisely accurate. The ratio is higher with youth and decreases a bit as the dog ages. Depending on breed, a dog experiences the raging hormones of adolescence anywhere from eight months to two years or more. Generally, a dog of six has aged about as much as a 45-year-old human. At 10, she's like a human of 65; at 12, a human of 75; and at 15, a human of 90.

A dog's lifespan is only a fraction of the average human's lifespan, which means that a dog ages more quickly in the same amount of time. This chart shows how a dog's age might be adjusted to compare to a human's age.

Canine Age
Human Age

2 Months
14 Months

6 Months
5 Years

8 Months
9 Years

1 Year
15 Years

2 Years
24 Years

3 Years
28 Years

4 Years
32 Years

5 Years
37 Years

6 Years
42 Years

7 Years
47 Years

8 Years
52 Years

9 Years
57 Years

10 Years
62 Years

11 Years
67 Years

12 Years
72 Years

13 Years
77 Years

14 Years
82 Years