Facts About Cats: Cat Age vs Human Age

by Paws on Your Heart on April 4, 2018

“How old is my cat in human years?”

People are fascinated with cat age, and the question “How old is my cat in human years?” is very common, especially among cat owners. Cats don’t age at the same rate as humans. In fact, the first few years of a cat’s life are much longer (in human years), than their later adult years.

What does this mean?

In the first year of a cat’s life it will grow from a kitten into a young adult, which in human years, is about 15-18 years of age. Don’t worry if your cat is a bit distant during this first year. Often times this is because your cat is going through adolescence, and he or she may want to spend time alone, much like a human teenager.

In the second year of your cat’s life you can expect him or her to grow into a more mature adult cat. At the end of this year your kitty will be approximately 24 human years old.

After this second year, your cat will age at an average rate of 4 human years every year. So at 3 cat years old, your kitty will be about 28 human years old.

To make the calculation simpler, you can use the following chart:

1-month-old kitten = 6-month-old human baby
3-month-old kitten = 4-year-old child
6-month-old kitten = 10 human years old
8-month-old kitten = 15-year-old human

At 1-year-old, a cat has reached adulthood, the equivalent of 18 human years

2 human years = 24 cat years
4 human years = 35 cat years
6 human years = 42 cat years
8 human years = 50 cat years
10 human years = 60 cat years
12 human years = 70 cat years
14 human years = 80 cat years
16 human years = 84 cat years

Want an even simpler way to calculate your cat’s age in human years? Try out the “Cat Age Calculator” below from the great people at calculatorcat.com.

How old is your cat? Does your cat act his or her age?
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