Seven years old for a dog is equivalent to 44 years old for a human. The average life span of a dog is generally 12-14 years. The comparison of dog age and human age is as follows:

1 month = 1 year old.

2 months = 3 years old.

3 months = 5 years old.

6 months = 9 years old.

9 months = 13 years old.

1 year old = 17 years old.

1 and a half years old = 2 years old.

2 years old = 4 years old (personality gradually stabilizes).

3 years old = 28 years old.

4 years old = 32 years old.

5 years old = 36 years old.

6 years old = 40 years old (in middle age, physiological functions begin to deteriorate).

7 years old = 44 years old.

8 years old = 48 years old.

9 years old = 52 years old.

10 years old = 56 years old.

11 years old = 60 years old.

12 years old = 64 years old.

13 years old = 68 years old.

14 years old = 72 years old.