Calculate Cat Age using Cat Age Chart in Human Years?

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Are you younger or older than your cat? Here you can find the exact cat age chart that we have made. According to studies, one year of human life is equivalent to seven years of a cat life. In reality, a one year old cat is much more mature than a seven year old child. These feline partners do not age the same way as we human do. Cats mature at different rates when compared to human life. Below we have created one chart that will give you can idea of how old your cats might be if they were human.  We also have give the kitten chart to let you know how old is your cute little friend in terms of human age.

Calculating kitten Age in Human Year

Kittens, when compared to newborn babies of human, grow very fast. They grow very fast in their first six months, reaching puberty at around 6-8 months old. When they are around the age of 6- 12 months, they can consider them of at least 10 years of age in human. When we talk about Siamese kittens, they get mature slowly than kittens of other cat breeds at first, especially in the first three months. But when you will see the maturity in them sexually then they may mature sexually earlier than other kittens. Also, Siamese cats live longer than other cats.

Cat age calculator

When you cat gets 1 year old then you can compare the age with a fifteen human years. That is how mature your 1 year Siamese cat is. When your cat gets two year old then it ages bit slow in terms of human years. The second year is equivalent to just 9 years of human life. So when your cat completes exact two years then the maturity of your cat is of 24 human years old.  Now when your cat reaches three year of age then it matures bit slow than first two years of her life. At three, one year of feline life is equal to about four years of human life. Below is the data that we have created to help you understand better.

Youth – Growing up

1 cat month = 1 human year 2 cat months = 2 human years 3 cat months = 3 human years 6 cat months = 6 human years 12 cat months = 15 human years 18 cat months = 18 human years 24 cat months = 24 human years, Here you will find the cat teeth turning yellow.



[After 2 years, each cat year equals 4 human years]

Prime of your life!

3 cat years = 28 human years 4 cat years = 32 human years 5 cat years = 36 human years, 6 cat years = 40 human years


7 cat years = 44 human years 8 cat years = 48 human years 9 cat years = 52 human years 10 cat years = 56 human years

Senior – Just like we human, you will find some teeth missing

11 cat years = 60 human years 12 cat years = 64 human years 13 cat years = 68 human years 14 cat years = 72 human years


15 cat years = 76 human years 16 cat years = 80 human years 17 cat years = 84 human years 18 cat years = 88 human years 19 cat years = 92 human years 20 cat years = 96 human years 25 cat years = 116 human years 30 cat years = 136 human years

What is the average life expectancy of my cat?

Among other cat breeds, the Siamese breed tends to live longer. A Siamese cat can easily live for around 25 years of age when proper diet and care is provided. Also, the cat age depends upon the quality of life your cat is living. Cat that live indoor usually have higher life tendency than outdoor cats. Indoor cats can live up to 15 to 20 years and some can even reach upto 25 years of age. A cat’s life expectancy also depends upon the breed as some cat breeds naturally live longer when compared to others. Siamese can Manx breed usually have high age tendency. There is a record of the oldest cat that lived for around 34 years. When we compare this life span of a cat with a human then it is around 155 human years. It is also recorded that in last few years, life expectancy of cat’s life has also increased.

How can I tell my cat’s age?

If you are not sure about your cat’s age then the best solution is to take then to a vet. Also, there are other signs from where you can guess the age of your cat.


You can’t exactly guess the age of your cat from it teeth but still they indicate the cat’s age.

  • When a kitten gets 2 to 4 weeks old, the first teeth appear.
  • A kitten when getting 4 months old, permanent white teeth appear.
  • If you see a yellow stain on some teeth of your cat then you can guess the age between 1 to 2 years old.
  • When this stain appears on all teeth then your cat is likely to around 3 to 5 years of age.
  • A senior cat of around ten to fifteen years of age will have some missing teeth.

In a rear case, bad teeth can be the sign of bad dental health of your cat. In this case you should immediately visit a vet if you find something wrong.

Muscles and bones

You can also guess the age of your cat from your kitty’s muscle and bones.  When a cat is young you will find the muscles strong and tight. Playing, jumping and running are the games of a young cat. When your cat gets old or start getting old you will find lose muscle mass and older cats may be bonier as you will notice skin hanging or protruding shoulder blades.


As the cat gets older, the fur also changes. A young cat will have fine. Soft fur while older one will have a thicker, coarser fur with patches of grey hair.


Just as we humans have an average life span of around 70 years; cats do have it for around 20 years. They get mature in their own time period similar to us and from the above chart you can easily guess the age and maturity of a cat and human.



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1 thought on “Calculate Cat Age using Cat Age Chart in Human Years?”

  1. Ariel says:

    My seal point siamese cat was born in 2007. So how old is my cat in human and cat years now?

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