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"