Myth: One dog year = severn human years?

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Myth: One dog year = severn human years?

October 30th, 2011

old dog in glasses

There is a common misunderstanding that 1 dog year is equal to 7 human years (so a 2 yera old dog is equivalent to a 14 year old human), but the reality is actually not this simple. The facts:

Puppies grows at a MUCH faster rate during the 1st year, an one year old puppy is approximately equivalent to a 14 year old human (which makes good sense considering dogs can start having puppies within 2 year)
After that, we have to factor in the breed size, as we all know small dogs live longer. So after the first 2 years, a small/medium dog will grow at a ratio of 5 human years to 1 dog year, whereas a large dog will grow at a ratio of 6-7 human year to 1 dog year

So a 10 year Great Dane is effectively 84 year old, but a 10 year old pug is only 64 years old.

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