World Library  
Flag as Inappropriate
Email this Article

Cat years

Article Id: WHEBN0005843537
Reproduction Date:

Title: Cat years  
Author: World Heritage Encyclopedia
Language: English
Subject: Cat, Cat health, American Cat Fanciers Association, Cat Aficionado Association, Cat play and toys
Publisher: World Heritage Encyclopedia

Cat years

The life expectancy of a cat is typically 12–15 years. However, some cats may attain the age of 21 years or more.[1] By comparison, the average life expectancy of humans at birth is 67.2 years.[2] A one-year-old cat is roughly comparable, in developmental terms, to a 20-year-old-human. Subsequent years of a cat's life add progressively fewer years to its human age equivalent, so that a 15-year old cat is roughly comparable, developmentally, to a 76-year-old human.[3]

The table below shows the correspondence between a cat's chronological age and the age of a human at a comparable stage of development.

Calendar years Equivalent human age
1 20
2 24
3 28
4 32
5 36
6 40
7 44
8 48
9 52
10 56
11 60
12 64
13 68
14 72
15 76
16 80
17 84
18 88
19 92
20 96
21 100
22 104
23 108
24 112
25 116

The oldest cat ever recorded was Creme Puff, who died in 2005, having attained the age of 38 years, 3 days (equivalent to the human age of 168 years).


  1. ^ "What is the life span of the common cat?",
  2. ^ CIA - The World Factbook -- Rank Order - Life expectancy of humans at birth.
  3. ^ "Cats Age Conversion Chart",
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.