To calculate your dog’s age in human years, you simply need to multiply his age by seven, right? For instance, if a dog is 6 years old, one might assume that his age would be equivalent to a 42-year-old human.
Turns out, the math isn't that simple. To determine your dog’s “human” age, you need to take a few more factors into account.
Dogs mature more quickly than we do early on. So the first year of your pooch's life is equal to about 15 human years.
A huge pup might age more slowly at first, but be nearing middle age at 5. Tiny and toy breeds don't become “seniors” until around age 10. Medium-sized pooches are somewhere in the middle on both counts.
Watch the video on the next page to see the full scope of what we mean.