Thursday, September 16, 2010

Rule of thumb: 1 people year equals 7 dog years - not that accurate

You've heard it time and time again; for a dog, each calendar year that goes by is like seven years for the dog. So if your dog just celebrated his 2nd birthday, he is the equivlent of 14 years old in dog years.

It turns out, this rule of thumb is not accurate at all. It doesn't account for several important factors such as the breed of the dog, it's size, and it's weight. For example, the larger the dog the faster it ages.

However, taking all those factors into account you can still come up with a more accurate rule of thumb. Generally speaking a one year old dog is about 15 years old. After two years it has aged about another 8 years and for every year after that it ages about 4 years. The larger the dog, the faster it ages. Of course, diet and excercise are important factors as well as to how long a dog will live.

Speaking of age. Any idea what the record is for the oldest dog to ever live? Give up? According to the Guiness Book of World Records honor belongs to an Australian Cattle Dog name Bluey. He died in 1929 at the ripe old age of 29 and 5 months. That would have made him around 140 years old.

Here's a graph that can may help you visualize the different aging rates:

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