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How old is your dog in human years
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How old is your dog in human years?

This calculator will allow you to calculate the age of your dog in human years. This is not an exact science and no one formula for dog-to-human age conversion is scientifically agreed on but it gives an approximate way of considering how old a dog is when compared to a human. Knowing the human age makes it easier to understand how old your dog is. The forumula used in the calculator is based around several different sources. Most of them agree that in the first 3 years of life one dog year is worth 10 human years. Then afterwards the aging depends on the weight of the dog. Heavier dogs age more quickly and generally have a shorter life. Of course many other factors affect the longevity of dogs such as diet, living conditions etc.

The aging of dogs can vary according to adult size (often determined by the breed): smaller dogs often live over 15–16 years, medium and large size dogs typically 10 to 13 years, and some giant dog breeds such as mastiffs, often only live for 7 or 8 years.

Enter the characteristics of your dog in the form below and we will calculate its human age.