December 20, 2018 4 min read

Usually, a cat’s owners know how old their pet is because it is so easy to remember when and at what age the kitten was bought or appeared in your home! However, there are situations when the cat's age is unknown, which happens often, if an adult animal appears suddenly or you simply do not know when the kitten was born. And in such situations, determine how old he is, has to "by eye". However, this is not so difficult to do, because there are some simple rules that allow determining the age of cats accurately enough. And they all, as a rule, come out from the animal's biological characteristics. 

        The easiest way to determine a cat’s approximate age is by its puberty.

In the most cats, it appears to 7-9 months. Therefore, if you have taken a sufficiently adult kitten, you have to wait simply for that moment, and you can find out about its approximate age. 

However, remember that in excellent living conditions, some cats mature early ‒ around the 6th month of life, so an exact age determination is not possible. It should also be kept in mind that puberty does not coincide with the physical building-up of the body ‒ this usually occurs much later (around 18 months).

Cats' Age ‒ Based on Their Teeth

The second method is more complex but more accurate and suitable for animals of all ages, not just for small kittens: the age of a pet can be seen on its teeth. So, if you are worried about how to find out how old a cat is, just take a closer look. Your task is to determine the abrasion’s degree of the front incisors. Their crown does not have a smooth top edge, and if the top edge has erased evenly, the cat is about six years old. At the age of ten, cats’ teeth begin to fall out for the first time, and this is also easily noticed.

By the way, there is a more exact scheme, compiled by felinologists, and according to which the age of the animal can be quite clearly defined. So:

  • milk teeth come through ‒ around 1 month old;
  • milk teeth are changing ‒ 5-6 months;
  • central incisors of the lower jaw are erased ‒ 1.5 years;
  • average incisors of the lower jaw are erased ‒ 2.5 years;
  • central incisors of the upper jaw are erased ‒ 3.5 years;
  • average incisors of the upper jaw are erased ‒ 4.5 years;
  • traces of erasing have appeared on the fangs ‒ 5 years;
  • extreme incisors of the upper jaw are erased ‒ 6 years;
  • changes in the transversely-oval rubbing surface of the lower jaw’s central and average incisors ‒ 7 and 8 years, accordingly;
  • changes in the transversely-oval rubbing surface of the upper jaw’s central incisors ‒ 9 years;
  • central incisors are falling out ‒ 10-12 years;
  • all incisors are falling out ‒ 12-15 years.

Usually, cats live up to 15-16 years, although, certainly, there have been cases of long-livers that reached the age of 30. And, of course, if you decide to determine your cat's age based on its teeth, also consider its way of life. In more favorable conditions, the loss of teeth may occur later, because, with a good diet, the falling of incisors will be a little slower.

The Age of Cats and a Men

Many cat owners often try to compare the age of their pets with that of a human and the most common rule that is often used is multiplying the number of cat's years by 7. 

It is believed that this would be the age of the animal compared with the human criterions. However, felinologists argue that this is not entirely true. The age of a cat and a person can really be compared with each other, however, the calculations should be done differently, and the difference and calculation methods will be different each year of the cat’s life.

So, if you are wondering how to know the age of a cat from a “human” point of view, remember the following values:

  • the 1st year of the animal's life is the equivalent to 15 years of human's life;
  • 2 years ‒ 24 years;
  • in the period from 3 years and up to 12 years ‒ every year adds 4 years (that is, 12 cat years are the equivalent to 64 human years);
  • after 12 years, each year of a cat’s life equates to three human ones. 

According to this scheme, it can be assumed that the cat reaches its middle age at the age of 8. After this, sadly, the animal begins gradual aging. Though this does not mean that your pet has survived until the "retirement"! As a rule, the age of cats is an "elastic notion" if the pet kept in good conditions. Therefore, many domestic animals live much longer than the “established” 12-15 years, delighting their owners not only with the good physical form but also with devotion, wisdom, and love.

Kawaii Meow
Lover of Japanese culture, cats, and self-help hacks. The biggest cat online store.


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