11 in dog years roughly equals 65 in human years.
This calculation was made for a medium-sized dog (21 to 50 pounds) using the recommendations from the AKC (American Kennel Club).
There are 2 ways of calculating the conversion from human years to dog years. The above result was calculated using the more correct way, we’ll explain what makes the other way incorrect later in this article.
The table below shows dog years and their equivalent to human years, with different columns for different sizes.
|Dog's Age in Years||Human Years (Small Dog)||Human Years (Medium Dog)||Human Years (Large Dog)|
Calculating how many human years is 11 in dog years
As mentioned above, there are 2 main ways of calculating dog years to human years and vice versa. There’s a correct way and an incorrect way.
The old way
The majority of people still believe that 1 dog year equals 7 dog years; this assumption was probably first introduced in the 1950s, however this isn’t the best method of calculating it.
Although there’s been quite a bit of research since then disproving this ratio of 7 to 1, it seems people continue to believe it. This formula might be based on the assumption that dogs live to 10 or so years, and humans live reach 70 years old, but honestly, we’re not quite sure when it first started.
Therefore, while the 7-1 rule is easy to remember and calculate, it’s unfortunately incorrect.
The correct formula
The correct way of converting human years to dog years is more complicated.
The American Veterinary Medical Association has the following things to add to it:
- The first year of a dog’s life equals around 15 human years.
- The second year of a dog’s existence equals about 9 human years.
- From that point onwards each human year is equal to either four or five dogs years.
Keep in mind that smaller dogs tend to live longer than bigger dogs. Scientists concluded that every 4.4 pounds of body mass reduced a dog’s life expectancy by about a month.