How old is your dog in human years? Multiplying your dog's age by seven is easy, but isn't very accurate.
This more carefully graded system piles the equivalent human years onto a dog's life more quickly during the dog's rapid growth to maturity.
One “dog year” equals 4 “human years” from ages 2 to 14 and after age 14, a “dog year” is equivalent to 2–½ “human years.”
See chart below to find out how old your dog is: