How do I determine the age of a dog?

Your vet can approximate the dog’s age based on its teeth.

Usually a vet is pretty good at estimating the age of a dog, ask your vet the next time you take him for a check up.

Have your local vet examine the dog.

Or you could always cut it in half and count the rings…

An experienced vet or vet tech can make a guess, but there’s no guarantee. Overall condition, appearance of the teeth, and any lenticular opacity (normal clouding of the eyes due to age) or cataract development will all give clues.

Why?

Cut off his leg and count the rings.

Just kidding, there is no definitive method but an experienced dog person can get a good idea from looking at teeth, eyes and distribution of body weight.

@roooeytoo, made me chuckle…or MMC, I guess.