Cat Age Chart: How to Convert Cat Years Into Human Years

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Your precious kitty is more than a pet, she's like you child. You feed her, play with her and love to cuddle with her! While you've envisioned what a lifetime of companionship would be like with your kitty, you man have wondered her age in human years? We hear a lot of talk about dog years, but how exactly do cat years work? If your cherished cat were a human baby, how old would she be? Maybe she's in her terrible twos or is more like a grumpy teenager. Let's find out just how to do this math.


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What is the life expectancy of indoor verse outdoor cats?

Indoor cats statistically live a lot longer than outdoor cats. Cats that live solely indoors live approximately 12-18 years, while outdoor cats live around two to five years. Improvements in nutrition and veterinary medicine are making it possible for cats to live even longer. Some cats are even living over 20 years old! With a healthy diet, ample activity and a safe environment, you can expect many long years with your beloved kitty.


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How do cat years work?

Many believe that cats age seven human years for each calendar year. This is a misconception, however, as felines age much more rapidly during the first two years of life. A cat is approximately 15 human years after her first year, then 24 human years by the age of 2 (see chart below)! Talk about growing up fast. Each year after that, a cat ages between three and four human years for every calendar year.


How old is my cat in people years?

If your cat is a brand new kitten, snuggle her tight because within the first year she will be a teenager! By the time your cat is 5, she is approximately 35 years old in human years. Use this chart to help you determine your cat's age in human years.


Cat Age ( years) Human Age (years)

  • 1-year-old cat is age 15 in human years.
  • 2-year-old cat is age 24 in human years.
  • 3-year-old cat is age 28 in human years
  • 4-year-old cat is age 31 in human years
  • 5-year-old cat is age 35 in human years
  • 6-year-old cat is age 38 in human years
  • 7-year-old cat is age 42 in human years
  • 8-year-old cat is age 45 in human years
  • 9-year-old cat is age 49 in human years
  • 10-year-old cat is age 52 in human years
  • 11-year-old cat is age 56 in human years
  • 12-year-old cat is age 59 in human years


What can I do to give my cat the longest life possible?

As your cat reaches her golden years, it is essential that you watch for small changes in her behavior or general well being. Look out for changes in appetite, breathing patterns, coat quality, physical abilities and even grooming habits. Make sure your aging cat still gets her routine vaccinations and take her for regular veterinary check-ups. Keep an eye on her overall health. Regular exercise and a balanced diet will help keep your kitty around for many cat and humans years to come.

Always check with your veterinarian before changing your pet’s diet, medication, or physical activity routines. This information is not a substitute for a vet’s opinion.



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