Your Dog's Age in Human years

There are many tables for converting between dog years (age) and human years (age). Many of them use a very simple calculation (e.g. 1 dog year equals 7 human years). But this is not very accurate.

The actual age of a dog in human terms depends on breed and size. This is because larger breeds live shorter lives and mature more quickly. Larger and giant breeds are generally considered ‘seniors’ by the time they reach five, whilst medium sized breeds take a little longer, at approximately seven. Small and toy breeds live longer, not reaching seniority until about ten years old.

You can use these comparison charts to calculate your dog’s approximate age in human years.

Some people calculate a dog's age in human years by multiplying their actual age in years by seven, but it gives only a rough estimate of your dog's age because a dog ages more rapidly in his early years than his later ones. Most breeds age at the same pace for the first five years of life, but smaller ones age more slowly than larger ones after this age and can live almost twice as long in some cases.

Dog Age	Human Age
2 months	14 months
6 months	5 years
8 months	9 years
12 months	14 years
2 years	20 years
3 years	24 years
4 years	30 years
5 years	40 years
6 years	42 years
7 years	49 years
8 years	56 years
9 years	63 years
10 years	65 years
11 years	71 years
12 years	75 years
13 years	80 ears
14 years	84 years
15 years	87 years
16 years	89 years