How old is your dog in Human years?

When I was younger I was told that a dog aged 7 years for each human year.  Now that I am older and more research has been done, I find that the answer to that question is not any where near so simple.

Dogs do not age at a liner rate when compared to humans.  They age much faster in the first two years of their life.  If you used the old 7 to 1 ratio a 6 month old puppy would be equivalent to a 3 1/2 year old human.  But research now shows that a 6 month old puppy is more equivalent to a 10 year old human.  A 1 year old dog is more equivalent to a 15 year old human and a 2 year old dog is closer to a 24 year old person.  The rate of aging then slows down after the first two years.  A dog does not age 7 years for each human year but more like 3 to 5 years depending upon age and size. (see the chart below)  In addition research shows that larger dogs begin to show the effects of age sooner. (see below)

Click The Button Below to Compute Your Dogs Equivalent Human Age

This information comes from other sources on the internet and should not be taken as my research or a medical statement about your dog.  Your dogs individual health, diet, and environment has more to do with how soon he or she may begin to show the effects of aging than any statistical study.  If you have concerns about you dogs aging, please see your veterinarian.
 Dog's Age  Human Age Chart
3 months5 years
6 months10 years
8 months13 years
10 months14 years
12 months15 years
16 months17.5 years
18 months20 years
2 years24 Years
4 years32 years
6 years40 years
8 years48 years
10 years56 years
12 years64 years
14 years72 years
16 years80 years
18 years88 years When are dogs considered geriatric and likely
to manifest problems associated with aging?
20 years96 years
21 years100 years
  • 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)
   
   
   
As a dog approaches old age many veterinarians recommend getting a Base Line examination to better evaluate your dogs health as it ages.

Here are some links to some of the web sources of the information I represent here.
 

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Created by Randall Jackson Other Sites by the Webmaster e-mailTopMarch 26, 2006