domestic cats

The age of cats in human terms

Cat breeders are aware that the growth and development of pets is subject to other laws. They are especially pronounced in the first year of a cat’s life. However, during the life cycle, cats grow and age, just like people, although their life expectancy is much less compared to that of a human. The material in this article will help readers deal with the age of cats by human standards.

How to find out how old a cat is?

You can calculate the age of a cat at home, although these data are considered approximate. This can be determined based on the data of the international veterinary passport of cats. This allows you to timely track age-related changes in your pet, providing him with the necessary measures to maintain health.

At the same time, the key factors in determining are not only the breed and living conditions of an individual animal, but also proper nutrition, genetic nuances and physiology.

To the teeth

Teeth are a kind of factor indicating age. When determining it, a person relies on the condition of the teeth, because their appearance changes over the years, despite the replacement of milk teeth with indigenous ones. Despite the fact that in some animals they are strong until old age, while in others they are sick almost from childhood, age can be determined by such signs as:

  • shade of teeth
  • erasure stage;
  • accumulation of tartar;
  • the number of dropped units.

However, when determining the age of the teeth, it is necessary to rely on two aspects that make it difficult to determine the age of a pet: care and heredity.

Cats that have owners brush their teeth and visit the dentist have well-groomed teeth, which sometimes creates the illusion of a younger age. If kittens have a malocclusion, dental problems cannot be avoided, and this adds age to the available years.

An excellent condition of teeth in cats happens in a year. At this time, they are white, do not have stubborn yellowness and deposits of tartar. The incisors at the age of 2 begin to wear out, which is still imperceptible outwardly. A two-year-old cat has yellow teeth only if the owner does not clean them. By the age of four, the central and middle incisors are noticeably worn. At the age of 6, the canines and extreme incisors are erased, and at the age of 10, teeth begin to fall out. At the age of 15, fangs fall out in some individuals.

By the eyes

Like humans, cats lose visual acuity over time, which is due to the state of the lens, and also noticeable in the iris. The veterinarian can determine the age. Young animals do not have increased lacrimation. As for the iris, the more it has irregularities and blotches, the older the cat.

The clear boundaries of the iris and the saturation of its color indicate the youth of the pet.

According to the state of the musculoskeletal system

You can understand the age of a cat by the structure of the musculoskeletal system, which affects the manner of movement. For example, kittens have disproportionate paws, they are long relative to the body. A six-month-old baby seems lanky, after the end of the puberty period, his body becomes stately, and his gait becomes graceful. The ears of kittens grow faster than the skull, but by the end of growth it becomes invisible.

Young cats differ in article, they have a muscular relief. Their movements are easy and unconstrained, at this age they are capable of long distances, and sometimes even stagger the imagination with acrobatic stunts. With age, this disappears: older animals remain dexterous, but over time they develop weakness in the joints. In addition, their spine may drop, bulging of the shoulder blades, thinning of the muscle relief, and weight loss are observed.

For other outward appearances

You can determine the age of a pet based on the condition of the coat (irrelevant for hairless cats). Despite the fact that the method is not as reliable in comparison with the determination of the teeth and eyes, it is no less interesting. For example, in kittens up to a year, the fur coat is softer and silkier. There are practically no tangles on it, the condition is good, indicating excellent health.

At a mature feline age, it becomes rough, but does not lose its silky structure, if the owner monitors its quality.

Cats go gray when they are 7 years old. Early gray hair indicates the presence of diseases, for the solution of which it is necessary to consult a doctor. From the age of 8, the fur coat becomes not so attractive, and therefore the owner has to more carefully monitor its health and beauty.

In addition, you can understand that the pet has reached puberty, you can by its behavior. For example, starting from the age of six months, cats begin to actively mark the territory with their own urine, which has a pungent odor. Compared to human standards, at this time they are like teenagers with their rebellious spirit.

There are conditionally developed tabular data that clearly show a person what is the age of his pet. The disadvantage of the data indicated in the table is inaccuracy.

Unfortunately, information portals today often provide the reader with unverified information. Therefore, the data in the tables differ.

As for a more accurate calculation option, in order to calculate it, it is necessary to have an idea about each stage of the animal’s development. This allows you to draw a mental portrait by human standards. In cats of different breeds, the life resource for which a kitten is born, develops and ages, passes at its own pace.

For example, venerable old age for representatives of the snowshoe breed comes at 10-11 years old. Asian tabbies live up to 20 years, tiffanys and smoky cats live up to 18, and individual record holders of the feline family reach the age of 30.

How does a cat develop by human standards?

Trying on the stages of human development to cats, you can understand how much time they take childhood, youth, youth and old age. For example, depending on the specific breed, the children’s period in cats can take from six months to a year.

The conditional boundary of its end can be called the complete replacement of milk teeth.


A kitten is considered a baby in the first weeks from the moment of birth. In the first week of his life, the film that protects the ears disappears. Teeth begin to erupt at two weeks, while in humans this process begins no earlier than 4-5 months. In terms of development, a one-month-old kitten is comparable to a six-month-old child.

Kittens of two months of age are equated to children of 10 months. A 6-month-old kitten is developed in about the same way as a 1.5-year-old baby. He is also actively interested in everything that surrounds him, pulls objects into his mouth, tries to know the world and really needs his mother.


The children’s stage of development in an animal begins at 3 months, flowing rapidly up to six months. During this period, the pet continues to actively explore the world, communicate with other kittens, and also learns to communicate with the owners. He understands his own and others, tries to socialize, takes care of the hygiene of his coat, washes, licks himself and learns to play.

Someone believes that kittens at 3 months are comparable to children 2-5 years old. Others are sure that this difference can be greater. In a couple of months, kittens develop for about 3-4 human years.

It is at this time that they need to be taught the rules established in the house, attached to the tray and their own couch.

Teenage years

Starting from the age of six months, the animal begins a period of youth. In adolescence, cats have already formed a character. At this time, cats and cats have already completed puberty, however, if males are ready for mating, then females are not recommended for up to a year. If breeders ignore this fact, the offspring of such cats is born sick.

In adolescence, an inexperienced owner attributes the pet’s bad behavior to childhood, but in reality it’s too late to forgive pranks at this time. The cat is already quite mature and has its own position in life, often supplemented by bad habits. At this time, the pet often behaves like a developed teenager, some individuals are capricious, and in particular they love to test the limits of permissibility. Sometimes, with a careful attitude towards pets, you can notice some coquetry between pets.


The period of youth in animals can be different, on average it is 3-4 years. In this way, a cat that has become young in a year is considered to be up to 5 years old. This is the best time to mate as the animals are still healthy and active. During this period, they can give good offspring. According to human standards, her age at this time corresponds to about 20-30 years. According to some data, its boundaries are more extended and range from 18 to 35 (40) years.

The characters of pets at this time may be different. Some cats, like people, become balanced and self-confident, others grow up quickly. Still others do not want to part with childhood, and therefore behave like small children, playing for a long time and hiding to attack, tracking down potential prey.

Representatives of individual breeds enter the youth phase no earlier than 2-3 years (relevant for some large breeds of the cat family).


A cat that has crossed the line of six years is considered mature. This period stretches up to 10 years for her, and for some even less. In general, there are usually no serious changes in her health with proper care. However, owners do not knit pets after they are 7 years old.. This is explained by the risk of complications in females that occur during late pregnancy.

As for the correlation with human standards, mature animals correspond to the average age category of people from 40 to 56 years. With age, these pets allow themselves to play and fool around less and less. Most of them become sedate and solid. However, if a particular breed is inherent in agility and curiosity from birth, individual individuals do not stop their research activities and do not change their own enthusiasm with which they approach everything.

Old age

A cat that is 11 years old is equated to people of retirement age. The period of old age in an animal of different breeds lasts up to 14 years, during which the activity of pets gradually decreases. This does not mean at all that they become lethargic and lazy, afraid of any physical exertion. At this time, as a rule, diseases make themselves felt. Therefore, pets need increased attention and care.

It is necessary to protect the “old men” from unnecessary stressful situations, to take care of their health. You can not shout at them, it is important to ensure that they do not catch cold during walks. It is necessary to carry out preventive examinations in order to prevent health problems.

In a word, they need to be taken care of like grandparents.


Long-lived cats are pets that are 15 years old or more. They are like old-timers, quietly living out their lives. At this time, the animals are less active, they sleep a lot, suffer from weakened joints, worn or missing teeth, and often because of this they refuse dry industrial food. Like the toothless old people they need liquid food that will not injure the gums.

Some individuals may suffer from urinary incontinence, while others become weak in the digestive process. You can not give them milk to drink, give solid and coarse food. In addition, raw fish with bones is categorically unacceptable. Weakness in long-lived cats may be temporary.

Rare old people, as in childhood, try to please their owners every day with awakening according to the cat’s scenario.

Ways to Compare Ages

Calculations of feline age in human years can vary. For example, in the simplest sense, it is believed that each year lived by a cat is conditionally equated to seven human years. The method is certainly not the most accurate, but it allows the owner to have a rough idea of ​​the age of the pet. Given that the development of cats can occur unevenly, the calculation can be based on other methods.

For example, an interesting method of counting, in which The first year of a cat’s life is equivalent to 15 human years.. During the second year of a pet’s life, it develops in much the same way as a person from 15 to 24 years old. All subsequent years, starting from the third, can be calculated using the formula: N=24+ (N-2) *4, where N is the actual cat’s age.

There is another method of calculation, which conditionally divides the life resource into three main stages. To calculate the “human” age of a cat, which is actually between one and five years old, you need to multiply its actual age by 7. The formula for a pet that has reached the milestone of 6 to 11 years old looks like this: x \u003d (z – 5) * 4 + 35, where x is the desired value. The formula for purrs at the age of 12-20 is different: x = (z – 11) * 3 + 59 (here it is necessary to multiply by 3).

Conventionally, we can assume that each subsequent year is equal to four human years. For pets under three years old, this formula is irrelevant. In addition, it is necessary to take into account such a factor as the early or, conversely, late development of kittens, which is typical for representatives of certain breeds of the cat family.

It is also possible to carry out the calculation according to another scheme. For example, a cat from one to five years for every 12 months conditionally lives 7 years. After that, each subsequent year she lives is equal to four human years.

Starting from his 12th birthday, each year is equal to three human years.

According to the third method of calculating the age of a cat by human standards, a special coefficient must be used in the calculations. At the same time, it is necessary to take into account such aspects as the social intelligence of the animal, its physical development and emotional sphere, comparing it with the human one.

This technique was developed by zoologists and veterinarians. Her data are enclosed in a table, through which the layman can find out the approximate ratio of the cat’s age to the representation of a person.

Ratio considering approximate conversion factor

Often the correct calculation and comparison does not give the correct results. This is explained by various reasons. For example, one of them is the lifestyle of an animal.

For example, it is the passivity of a pet that often shortens its biological clock, as a result of which it ages much faster.

Sexual activity also matters. It has been proven that if cats and cats do not have the opportunity to realize their sexual instincts, hormonal failure occurs in their bodies. And this entails a deterioration in the condition of bones, teeth, and the functioning of internal organs. Such pets age quickly, making it difficult to calculate their average age according to human standards.

It is generally accepted that the feline body can begin to age after the animal celebrates its fourth birthday. Contribute to this stress and emotional stress, as well as malnutrition. Often it is the laziness of the owner that turns into a loss of smoothness and silkiness of the coat, loss of teeth and accumulation of tartar. The diet of the animal must be balanced and complete. He needs not only nutrients, but also vitamins and trace elements.

Correspondence table

Nothing will allow you to understand and calculate the age of a cat by human standards like a table of correspondences with visual data. We draw the reader’s attention to the fact that the data are approximate, and therefore it is not worth taking the calculations for the idealization of the main calculation. They allow you to find out the approximate biological age, nothing more.

The ratio of the age of a cat and a person

It is important to understand that data may vary between representatives of individuals of the same breed, but of different sexes. Like humans, they can have different types of biological clocks. For example, females of elite breeds are rapidly aging, which breeders mercilessly use for breeding and profit. The body of these cats wears out quickly, they weaken, which can lead to profuse hair loss, loss or increased grinding of teeth.

In addition, they are susceptible to diseases that shorten the life span and make it difficult to determine the age by the standards of people.

However, given the well-known statistics, it has been proven that healthy females live longer than males, which is why their age conversion coefficients can be adjusted taking into account human standards. Due to frequent pregnancies, they also cannot withstand the hormonal background, which causes malfunctions in the work of various body systems. But health can be affected by frequent colds and junk food. Cats that are fed greasy and smoked food from the human table look worse than their counterparts who eat right.

And therefore, with the same actual age, outwardly they can look radically different. Outdoor animals age earlier. To know more precisely what is the biological age of a cat or cat, you should contact your veterinarian. Specialists of this kind are taught to rely on the physiology of animals and their external data, and therefore they often give a very accurate assessment.

How to determine the age of a cat is described in the following video.