Convert Cat Years to Human Years

The most important things at a glance

The myth 1 cat year = 7 human years is not true.

Cats age at different rates throughout their lives. In the first cat year, they age 15 human years. In the second and third years 6 years each. According to this, a cat year = 4 human years.

Dog years, on the other hand, are calculated completely differently. To the dog year calculator.

Why is cat age important?

Cats age much faster than humans, reaching sexual maturity as early as six months. Cat owners should take this into account if they want to prevent unwanted offspring.

But even later, it’s important to keep an eye on the cat’s age.

It is very important to know the approximate age of the cat, as care, nutrition, and understanding of the animal are crucial. If you know the age of your cat, you can also make your pet’s life less stressful and more species-appropriate. With an annual check-up at the vet, the right diet, adjustments to the furnishings, and physical care, you can increase the cat’s quality of life as it gets older and, ideally, also extend its life.

How do you calculate a cat’s “human age”?

In the first year, the cat goes through a development that takes humans 15 years. So you calculate 15 years for the first year.

In the following two years, the cat ages by 6 human years. Here you calculate + 6 in each case.

When the cat is three years old, it has reached the human age of 27 years. In each subsequent year, she ages by four cat years. So you calculate + 4 for each additional year.

Table: cat ages and human ages

You can easily convert cat years to human years using the table below. The table also gives an overview of the life phases of a cat.

cat years	human years	the life stage of the cat
1 year	15 years	childhood/kittens
2 years	21 years	Junior
3 years	27 years	Adult
4 years	31 years	Adult
5 years	35 years	Adult
6 years	39 years	Adult
7 years	43 years	maturing years
8 years	47 years	maturing years
9 years	51 years	maturing years
ten years	55 years	maturing years
11 years	59 years	Senior
12 years	63 years	Senior
13 years	67 years	Senior
14 years	71 years	Senior
15 years	75 years	Grandma/Grandpa
16 years	79 years	Grandma/Grandpa
17 years	83 years	Grandma/Grandpa
18 years	87 years	Grandma/Grandpa
19 years	91 years	Grandma/Grandpa
20 years	95 years	Grandma/Grandpa
21 years	99 years	Grandma/Grandpa
22 years	103 years	Grandma/Grandpa
23 years	107 years	Grandma/Grandpa
24 years	111 years	Grandma/Grandpa
25 years	115 years	Grandma/Grandpa

How old can cats get?

Cats that live as pets usually live to be around 15-20 years old. However, they can also age. The world’s oldest known domestic cat lived in the United States and lived to be 38 years old. That corresponds to 167 human years.

Many older cats are currently waiting for a new home in many animal shelters and animal welfare organizations. With older animals, we experience a stable character. This leads to a high level of balance in everyday life. Many seniors have a higher human connection and for this reason, particularly deserve a placement for the second half of their lives. Unfortunately, we often experience that many interested parties are only looking specifically for young animals. However, it should be remembered that old cats are more dependent on human help than when they are younger.

The table life expectancy of cats

cat type/breed	life expectancy
Domestic cats	15 – 20 years
Day releaser	8 – 12 years
Stray	6 – 8 years
Pedigree cats in general	10 – 12 years
American Wirehair	14 – 18 years
Balinese	18 – 22 years
Bengal	12 – 16 years
British shorthair	12 – 14 years
European shorthair	15 – 22 years
Maine Coon	12 – 15 years
Persian	10 – 17 years
Ragdoll	12 – 17 years
Siamse	15 – 20 years

Is cat age the same as dog age?

No, because cats and dogs age completely differently. While dog age depends on size, weight, and breed, cat age is completely independent of these factors.

When do cats hit puberty?

From the age of around six months, a cat becomes sexually mature and thus enters puberty.

When is my cat a senior?

This varies slightly depending on the cat. In principle, however, one can assume that a cat will become a senior between the ages of 8 and 11. In this phase of life, for example, the need for food and rest changes.

Is there a difference in life expectancy between indoor and outdoor cats?

Indoor cats generally live in relatively low-risk environments. For this reason, they usually live up to 20 years. Outdoor cats face more risks such as other animals or traffic resulting in them having an average life expectancy of up to 12 years.

How many cat years are in a human year?

The first year of a cat’s life is equal to 15 human years. This means that in its first year, the cat goes through about the same development as a human goes through up to the age of 15.

How old is a cat at 7?

A seven-year-old cat is 43 years old in human years, which is already mature adulthood.

How do you calculate the age of cats?

The first year in a cat’s life is 15 human years. In the second and third years, you calculate + 6. So a two-year-old cat is 21, and a three-year-old is 27 human years. Each additional year counts as four human years.

How do you convert cat years to human years?

For the conversion you need to know three calculation approaches:

The first cat year equals = 15 human years. The second and third years each correspond to 6 years human years. From the fourth year, the cat ages 4 human years per year. For example, a ten-year-old cat is B. 15 years + (2 * 6 years) + (7 * 4 years) = 55 years old.

Does cat age equal human age?

No, In the first year alone, the cat goes through a development that takes humans 15 years. Adult cats aged four and over age about four times as fast as humans.