Human vs. Dog Ages

 

Dog

  6 months
  8 months
10 months
12 months
18 months
  2 years
  4 years
  6 years
  8 years
10 years
11 years
12 years
13 years
14 years
15 years
16 years
18 years
20 years
21 years

Human

10 years
13 years
14 years
15 years
20 years
24 years
32 years
40 years
48 years
56 years
60 years
64 years
68 years
72 years
76 years
80 years
88 years
96 years
100 years

When are dogs considered geriatric and likely to manifest problems associated with aging?

Small Dogs (less than 20 pounds)    11.5 years (+/- 1.9)
Medium sized Dogs (21-50 pounds) 10.2 years (+/-1.6)
Large Dogs (51-90 pounds)                  8.9 years (+/-1.4)
Giant Dogs (more than 90 pounds)     7.5 years (+/-1.3)

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