How Old is 11 months in Dog Years?

11 months in dog years roughly equals 14 years 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 YearsHuman Years (Small Dog)Human Years (Medium Dog)Human Years (Large Dog)

Calculating how many human years is 11 months 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 calculation

Many people believe that one dog year is equal to 7 dog years. This belief likely began in the 1950s, but this isn’t the best method of calculating it.

While there has been plenty of research since then that disproves the 7:1 ratio, it seems people continue to believe it. This formula might have been based on the assumption that dogs live to 10 or so years, and humans live can live to 70, however, we’re not quite sure the date it was first introduced.

The 7-1 rule is simple to remember and calculate, it’s unfortunately incorrect.

The correct way

The best method of converting human years to dog years is a bit more complicated.

The American Veterinary Medical Association has the following things to add to it:

  • The first year of a medium-sized dog’s life equals around 15 human years.
  • The second year in a dog’s lifespan is roughly 9 years for humans.
  • From that point onwards each human year is equal to four or five dog 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.


Becky Roberts

Becky Roberts

One of Becky's favourite things to do every morning is to browse the top pet-related forums, looking for issues and questions that people have. She then shortlists the most common ones, and turns them into blog posts for Fuzzy Rescue. She's had over 4 cats and 2 dogs over the past decade, so she does know a thing or 2 about raising/training, and more importantly, loving them. She's the only one on our team that doesn't like coffee, but it seems to us she really doesn't need more energy :). We're very fortunate to have her on board as she does most of the heavy listing for the site, outputting an insane amount of content each month. Read More

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