A cat resting

How old is your cat?

Find out your cat's approximate age in human years.

Your cat's age4 years
Slide to select the age
Your cat is approximately
32 human years old
In the happy prime of life.
Did you know
A cat has five toes on each front paw, but only four on the back.
The math, gently

How do cat years compare to human years?

The popular idea that one cat year equals seven human years is a myth — it doesn't match how cats really grow. Cats mature quickly in their first two years, reaching the human equivalent of the mid-twenties.

After that, aging settles into a gentle, steady pace. That's why we count the early years generously and the later ones more slowly.

15
human years in the first year
+9
added in the second year
+4
for every year after
Reference

The cat age chart

The gold marker follows the age you selected in the calculator above.

Young adult Mature adult Senior 0 24 48 72 96 32 human yrs 1 5 10 15 20
Human yearsCat age
Quick answers

Common cat ages

How old is a 1-year-old cat?
15
approx. human years
How old is a 5-year-old cat?
36
approx. human years
How old is a 10-year-old cat?
56
approx. human years
How old is a 15-year-old cat?
76
approx. human years
A cat's life

The four life stages

0–1 year
Kitten
Growing fast and endlessly curious — the equivalent of childhood and the teenage years rolled into one.
1–6 years
Young adult
Full of energy and personality, settling into their prime and their favourite routines.
7–10 years
Mature adult
Calmer and content, enjoying comfort and the company they know best.
11+ years
Senior
A cherished elder who has earned the sunniest spots and a little extra care.
Good to know

Frequently asked questions

No — that rule of thumb is a myth. Cats mature quickly early on, so the first two years count for a lot, and every year after adds only about four.

About

My Cat Age is a simple tool for estimating your cat's age in human years. Enter your cat's age to get an easy, affectionate comparison — made by people who love cats.