Dog Age Chart

Nice chart based on dogs size

Dog Age Human Years

2 months 14 months

6 months 5 years

8 months 9 years

12 months 14 years

2 years 20 years

3 years 24 years

4 years 30 years

5 years 40 years

6 years 42 years

7 years 49 years

8 years 56 years

9 years 63 years

10 years 65 years

11 years 71 years

12 years 75 years

13 years 80 years

14 years 84 years

15 years 87 years

16 years 89 years

http://www.dogsindepth.com/dog_age_in_human_years.html

Year 1 14 years
Year 24 years
and each year after add 5 years
Stanley Cohen "How dogs think"