4/6/2023 0 Comments All animal age chart![]() ![]() The second year, as development levels out, should equate to 3 to 8 years of human aging. Some mathematicians feel that a 1-year old dog should be compared to a 10- to 15-year old human. But even with this theory, there is variation. Formulas that take into consideration the faster development that occurs the first two years of life give a more accurate comparison. Who knows? The easiest equation (7:1) is probably the least accurate. So, what is the answer to the math problem? This method either categorizes dogs as small, medium, and large or more specifically uses their estimated adult weight. The most accurate estimate of a dog’s age in human years is calculated taking size and breed into consideration. Even the more accepted equation utilizing the 10.5 factor the first two years of the dog’s life and 4 years thereafter has pitfalls, because it does not account for size and breed. Plus, the ratio varies with dog breed and size. The old “7 dog years = 1 human year” theory is inaccurate, because the dog ages and develops more quickly the first two years of life. Complicated enough for you? Simple Math Will Not WorkĬomplications in comparing dog age to human age are well founded. So, the equations have to be altered according to geography. The average life span globally is only 66 years. Using the simple 7:1 ratio, this same 10-year old dog would be the equivalent of a 70-year old human.Īll of these calculations are based on the assumption that the average human life expectancy in developed countries is 80 years. Using this formula, a 10-year old dog is the equivalent of a 53-year old human. When a dog hits the three-year mark, he ages 4 years to every 1 human year bringing the ratio to 4:1. So, the dog: human aging ratios is 10.5:1 rather than 7:1. ![]() During the first two years, one dog year equals about 10.5 human years. Dogs develop more quickly the first two years of life, after which development levels out a bit. "Dogs develop more quickly the first two years of life, after which development levels out a bit."Īnother factor that skews age calculation involves the rate of canine development. The 7:1 ratio does not hold across the board. But when comparing breed, Great Danes may outlive larger sized Bulldogs. When comparing size, small Poodles live longer than huge Great Danes. In addition, certain breeds enjoy more longevity than others. Larger dogs, in contrast, age more quickly and have shorter life spans. Smaller dogs age more slowly and have longer life spans. canine age takes into consideration the dog’s size and breed. This simple equation is only a rough estimate. ![]() The most common theory comparing human and canine ages uses this equation:Ī dog’s age (in years) x 7 = Age in “dog years.”įor example, if your dog was born 7 years ago, he is 49 years old in “dog years.” (Or, stated differently, a 7-year old dog is at a similar stage in aging to a 49-year old human.) Comparing your human age to your furry friend’s canine age is rather complicated but, simply put, one year to Fido is not one year to you. You do not feel older, so why does your dog? Perhaps it is because what you and your dog consider “old” are vastly different. What a difference a few years make to your dog. You slowly walk to the mailbox and your old dog still lags behind. You take a brisk run with your young dog close at your heels. You see your old dog lumber slowly to the food bowl. You watch your young pup bounce across the lawn. ![]()
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