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Age Comparison Chart for Dogs and Cats
These charts are generally based on
tooth and bone growth, sexual maturity and other factors related to
maturity. They are not exact. These are averages.
Larger breeds mature
more slowly initially, and have shorter life spans -- a Great Dane
is going to be relatively younger (in human years) at age 1 and
considerably older at age 8 than the average. (A Chihuahua is going to be just the
opposite -- will be more mature at age 1 and somewhat younger at age
8.)
Cats are similar to
small breeds of dogs in their aging relationships. We have
seen cats over 25 years old! Although this is exceptional.
Small Dog Breeds
(under 21 pounds)
|
| Real age |
Human
equivalent |
| 1 yr |
15 yr |
| 3 |
28 |
| 5 |
36 |
| 8 |
48 |
| 10 |
56 |
| 12 |
64 |
| 15 |
76 |
|
 |
Medium Dog Breeds
(21-40 pounds)
|
| Real age |
Human
equivalent |
| 1 yr |
15 yr |
| 3 |
29 |
| 5 |
38 |
| 8 |
51 |
| 10 |
60 |
| 12 |
69 |
| 15 |
83 |
|
|
Large Dog Breeds
51-90 pounds
|
| Real age |
Human
equivalent |
| 1 yr |
14 yr |
| 3 |
29 |
| 5 |
40 |
| 8 |
55 |
| 10 |
66 |
| 12 |
77 |
| 15 |
93 |
|
|
|
| |
|
|
|
|
|
|
Giant Dog Breeds
90+ pounds
|
| Real age |
Human
equivalent |
| 1 yr |
12 yr |
| 3 |
28 |
| 5 |
42 |
| 8 |
64 |
| 10 |
78 |
| 12 |
93 |
| 15 |
115 |
|
|
|
Cats
|
| Real age |
Human
equivalent |
| 1 yr |
24 yr |
| 3 |
42 |
| 5 |
48 |
| 8 |
57 |
| 10 |
63 |
| 12 |
69 |
| 15 |
78 |
|
|
These age comparisons are important to help us realize how frequently we should perform wellness exams, and when to screen for age-related disease processes.
Ask your veterinarian what is optimal for your pet! |
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