Everyone will have already wondered what age their pet is in human terms. However here is the real method to know what age your dog or cat would be if they were human.
If you think, like the majority of people, you just need to multiply the age of your dog or cat by seven to calculate their age in human terms then you are mistaken!
This popular belief does not take into consideration the size or animal breed, which are important elements in calculating their age. It also doesn’t consider the fact that our four-legged pets reach their sexual maturity before they are one year old which is not the case for seven year old humans…
Calculating the age of your cat
A cat’s life expectancy is quite long as they are often able to live until they are between 12 and 18 years old. This all depends of course on their diet, their sex and numerous other factors. Did you know that the oldest cat in the world is currently 31 years old?
The first visible signs that allow you to detect the start of an aging cat happen when they are around 10 years old. But what does that correspond to? Have a look below to see for yourself:
Cat’s Age Equivalent human age
1 month 6 months
2 months 1 year
3 months 3 years
4 months 5 years
6 months 13 years
1 year 18 years
2 years 25 years
3 years 33 years
6 years 40 years
8 years 50 years
10 years 65 years
12 years 75 years
14 years 80 years
16 years 90 years

Calculating the age of your dog
Dogs have a shorter life expectancy than cats and live to between 8 and 15 years old. The current record for the oldest dog is held by Bouvier who died at the incredible age of 29 years old that is the human equivalent of 200 years old.
Smaller dogs live longer than older dogs. When older dogs reach 7 years old you can see they are starting to reach old age while smaller dogs generally start to hit their later years from the age of 10. Dogs that weigh less than 15 g also reach a certain level of maturity faster which allows them to grow up quicker than there larger contemporaries despite living longer. Have a look for yourself:
Dog’s Age Equivalent Human Age
Dog – 15 kg Dog 15 to 40 kg Dog + 40 kg
1 year 20 years 18 years 16 years
2 years 28 years 27 years 22 years
3 years 32 years 33 years 31 years
4 years 36 years 39 years 40 years
5 years 40 years 45 years 49 years
8 years 52 years 63 years 76 years
10 years 60 years 75 years 96 years
12 years 68 years 85 years 112 years
13 years 72 years 90 years 120 years
15 years 80 years 102 years –
20 years 110 years – –

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